diff --git a/applications/json_packager/deploywin/json_packager.iss b/applications/json_packager/deploywin/json_packager.iss
index d14333ce1..5b446cd39 100644
--- a/applications/json_packager/deploywin/json_packager.iss
+++ b/applications/json_packager/deploywin/json_packager.iss
@@ -1,6 +1,6 @@
 [Setup]
 AppName=External OPM JSON package Editor
-AppVersion=0.1.14.0
+AppVersion=0.1.15.0
 DefaultDirName={pf}\OPMUtilities
 DefaultGroupName=OPM
 UninstallDisplayIcon={app}\jsoneditor.exe
diff --git a/applications/json_packager/deploywin/locale/jsoneditor.en.po b/applications/json_packager/deploywin/locale/jsoneditor.en.po
index 44f325a64..cb0b69456 100644
--- a/applications/json_packager/deploywin/locale/jsoneditor.en.po
+++ b/applications/json_packager/deploywin/locale/jsoneditor.en.po
@@ -68,8 +68,6 @@ msgstr ""
 "as a JSON update file\n"
 
 #: tfrmmain.editdownloadzipurl.hint
-#, fuzzy
-msgctxt "tfrmmain.editdownloadzipurl.hint"
 msgid ""
 "Download URL:\n"
 "Include the FULL url needed to download the package Zip file\n"
@@ -108,8 +106,6 @@ msgid "Save As"
 msgstr "Save As"
 
 #: tfrmmain.lbldownloadzipurl.caption
-#, fuzzy
-msgctxt "tfrmmain.lbldownloadzipurl.caption"
 msgid "Download URL:"
 msgstr "Download URL:"
 
@@ -191,13 +187,6 @@ msgid "Attempting to Open URL"
 msgstr "Attempting to Open URL"
 
 #: tfrmmain.stringpackagefiles.hint
-#, fuzzy
-#| msgid ""
-#| "Package Files:\n"
-#| "[Add]:  to make a new entry\n"
-#| "[Remove]: Remove last entry\n"
-#| "lpk filename: i.e. mycontrol.lpk\n"
-#| "Version: The FULL version (i.e. not 1.0 but 1.0.0.0)\n"
 msgid ""
 "Package Files:\n"
 "[Add]:  to make a new entry\n"
@@ -220,25 +209,21 @@ msgid "Compiled with FPC V:%s and Lazarus V:%d.%d%s for the %s - %s platform%s%s
 msgstr "Compiled with FPC V:%s and Lazarus V:%d.%d%s for the %s - %s platform%s%s"
 
 #: umain.rsdownloadzipurld
-#, fuzzy
 msgctxt "umain.rsdownloadzipurld"
 msgid "- Download URL does not contain the zipfile name"
 msgstr "- Download URL does not contain the zipfile name"
 
 #: umain.rsdownloadzipurli
-#, fuzzy
 msgctxt "umain.rsdownloadzipurli"
 msgid "- Download URL is too short or missing"
 msgstr "- Download URL is too short or missing"
 
 #: umain.rsdownloadzipurli2
-#, fuzzy
 msgctxt "umain.rsdownloadzipurli2"
 msgid "- Download URL is incomplete"
 msgstr "- Download URL is incomplete"
 
 #: umain.rsdownloadzipurls
-#, fuzzy
 msgctxt "umain.rsdownloadzipurls"
 msgid "- Download URL should start with \"http\""
 msgstr "- Download URL should start with \"http\""
@@ -331,6 +316,10 @@ msgstr "(You can toggle these hints on/off in the Help menu)"
 msgid "Update"
 msgstr "Update"
 
+#: umain.rsupdatejsonsf
+msgid "Update file \"%s\" failed to load correctly."
+msgstr "Update file \"%s\" failed to load correctly."
+
 #: umain.rsupdatezipnam
 msgid "- Update zip name is too short or missing"
 msgstr "- Update zip name is too short or missing"
diff --git a/applications/json_packager/deploywin/locale/jsoneditor.es.po b/applications/json_packager/deploywin/locale/jsoneditor.es.po
index 6c62a55a1..d256abe85 100644
--- a/applications/json_packager/deploywin/locale/jsoneditor.es.po
+++ b/applications/json_packager/deploywin/locale/jsoneditor.es.po
@@ -323,6 +323,10 @@ msgstr "(Puedes cambiar estos consejos en el menú Ayuda)"
 msgid "Update"
 msgstr "Actualización"
 
+#: umain.rsupdatejsonsf
+msgid "Update file \"%s\" failed to load correctly."
+msgstr "Error al cargar \"%s\" correctamente el archivo de actualización"
+
 #: umain.rsupdatezipnam
 msgid "- Update zip name is too short or missing"
 msgstr "- El nombre del zip es muy corto o está vacío"
diff --git a/applications/json_packager/jsonpackage.lps b/applications/json_packager/jsonpackage.lps
index f00e5c88a..3e6c2d0f6 100644
--- a/applications/json_packager/jsonpackage.lps
+++ b/applications/json_packager/jsonpackage.lps
@@ -10,7 +10,7 @@
         <IsPartOfProject Value="True"/>
         <EditorIndex Value="4"/>
         <CursorPos Y="30"/>
-        <UsageCount Value="62"/>
+        <UsageCount Value="63"/>
         <Loaded Value="True"/>
       </Unit0>
       <Unit1>
@@ -20,12 +20,12 @@
         <HasResources Value="True"/>
         <ResourceBaseClass Value="Form"/>
         <IsVisibleTab Value="True"/>
-        <TopLine Value="466"/>
-        <CursorPos Y="470"/>
-        <UsageCount Value="62"/>
+        <TopLine Value="187"/>
+        <CursorPos X="37" Y="224"/>
+        <UsageCount Value="63"/>
         <Bookmarks Count="2">
-          <Item0 Y="488" ID="1"/>
-          <Item1 Y="757"/>
+          <Item0 Y="492" ID="1"/>
+          <Item1 Y="772"/>
         </Bookmarks>
         <Loaded Value="True"/>
         <LoadedDesigner Value="True"/>
@@ -33,7 +33,7 @@
       <Unit2>
         <Filename Value="ugenericcollection.pas"/>
         <IsPartOfProject Value="True"/>
-        <UsageCount Value="62"/>
+        <UsageCount Value="63"/>
       </Unit2>
       <Unit3>
         <Filename Value="D:\Lazarusprojects\golfml\egacalculator\source\umainform.pas"/>
@@ -129,123 +129,123 @@
     <JumpHistory Count="30" HistoryIndex="29">
       <Position1>
         <Filename Value="umain.pas"/>
-        <Caret Line="403" Column="21" TopLine="363"/>
+        <Caret Line="486" Column="21" TopLine="446"/>
       </Position1>
       <Position2>
         <Filename Value="umain.pas"/>
-        <Caret Line="464" Column="70" TopLine="424"/>
+        <Caret Line="598" Column="32" TopLine="558"/>
       </Position2>
       <Position3>
         <Filename Value="umain.pas"/>
-        <Caret Line="486" Column="21" TopLine="446"/>
+        <Caret Line="600" Column="37" TopLine="560"/>
       </Position3>
       <Position4>
         <Filename Value="umain.pas"/>
-        <Caret Line="598" Column="32" TopLine="558"/>
+        <Caret Line="601" Column="23" TopLine="561"/>
       </Position4>
       <Position5>
         <Filename Value="umain.pas"/>
-        <Caret Line="600" Column="37" TopLine="560"/>
+        <Caret Line="620" Column="77" TopLine="580"/>
       </Position5>
       <Position6>
         <Filename Value="umain.pas"/>
-        <Caret Line="601" Column="23" TopLine="561"/>
+        <Caret Line="623" Column="37" TopLine="583"/>
       </Position6>
       <Position7>
         <Filename Value="umain.pas"/>
-        <Caret Line="620" Column="77" TopLine="580"/>
+        <Caret Line="624" Column="23" TopLine="585"/>
       </Position7>
       <Position8>
         <Filename Value="umain.pas"/>
-        <Caret Line="623" Column="37" TopLine="583"/>
+        <Caret Line="628" Column="33" TopLine="589"/>
       </Position8>
       <Position9>
         <Filename Value="umain.pas"/>
-        <Caret Line="624" Column="23" TopLine="585"/>
+        <Caret Line="629" Column="42" TopLine="590"/>
       </Position9>
       <Position10>
         <Filename Value="umain.pas"/>
-        <Caret Line="628" Column="33" TopLine="589"/>
+        <Caret Line="631" Column="37" TopLine="592"/>
       </Position10>
       <Position11>
         <Filename Value="umain.pas"/>
-        <Caret Line="629" Column="42" TopLine="590"/>
+        <Caret Line="632" Column="23" TopLine="593"/>
       </Position11>
       <Position12>
         <Filename Value="umain.pas"/>
-        <Caret Line="631" Column="37" TopLine="592"/>
+        <Caret Line="636" Column="65" TopLine="597"/>
       </Position12>
       <Position13>
         <Filename Value="umain.pas"/>
-        <Caret Line="632" Column="23" TopLine="593"/>
+        <Caret Line="638" Column="37" TopLine="599"/>
       </Position13>
       <Position14>
         <Filename Value="umain.pas"/>
-        <Caret Line="636" Column="65" TopLine="597"/>
+        <Caret Line="639" Column="23" TopLine="600"/>
       </Position14>
       <Position15>
         <Filename Value="umain.pas"/>
-        <Caret Line="638" Column="37" TopLine="599"/>
+        <Caret Line="710" Column="61" TopLine="670"/>
       </Position15>
       <Position16>
         <Filename Value="umain.pas"/>
-        <Caret Line="639" Column="23" TopLine="600"/>
+        <Caret Line="397" TopLine="360"/>
       </Position16>
       <Position17>
         <Filename Value="umain.pas"/>
-        <Caret Line="710" Column="61" TopLine="670"/>
+        <Caret Line="441" Column="5" TopLine="414"/>
       </Position17>
       <Position18>
         <Filename Value="umain.pas"/>
-        <Caret Line="397" TopLine="360"/>
+        <Caret Line="444" Column="42" TopLine="141"/>
       </Position18>
       <Position19>
         <Filename Value="umain.pas"/>
-        <Caret Line="441" Column="5" TopLine="414"/>
+        <Caret Line="386" Column="27" TopLine="377"/>
       </Position19>
       <Position20>
         <Filename Value="umain.pas"/>
-        <Caret Line="444" Column="42" TopLine="141"/>
+        <Caret Line="431" Column="18" TopLine="417"/>
       </Position20>
       <Position21>
         <Filename Value="umain.pas"/>
-        <Caret Line="386" Column="27" TopLine="377"/>
+        <Caret Line="367" Column="18" TopLine="363"/>
       </Position21>
       <Position22>
         <Filename Value="umain.pas"/>
-        <Caret Line="431" Column="18" TopLine="417"/>
+        <Caret Line="36" Column="71" TopLine="10"/>
       </Position22>
       <Position23>
         <Filename Value="umain.pas"/>
-        <Caret Line="367" Column="18" TopLine="363"/>
+        <Caret Line="700" TopLine="682"/>
       </Position23>
       <Position24>
         <Filename Value="umain.pas"/>
-        <Caret Line="36" Column="71" TopLine="10"/>
+        <Caret Line="31" Column="60" TopLine="13"/>
       </Position24>
       <Position25>
         <Filename Value="umain.pas"/>
-        <Caret Line="700" TopLine="682"/>
+        <Caret Line="417" Column="45" TopLine="393"/>
       </Position25>
       <Position26>
         <Filename Value="umain.pas"/>
-        <Caret Line="31" Column="60" TopLine="13"/>
+        <Caret Line="6" Column="60"/>
       </Position26>
       <Position27>
         <Filename Value="umain.pas"/>
-        <Caret Line="417" Column="45" TopLine="393"/>
+        <Caret Line="38" Column="37" TopLine="23"/>
       </Position27>
       <Position28>
         <Filename Value="umain.pas"/>
-        <Caret Line="6" Column="60"/>
+        <Caret Line="388" TopLine="375"/>
       </Position28>
       <Position29>
         <Filename Value="umain.pas"/>
-        <Caret Line="38" Column="37" TopLine="23"/>
+        <Caret Line="41" Column="15" TopLine="17"/>
       </Position29>
       <Position30>
         <Filename Value="umain.pas"/>
-        <Caret Line="388" TopLine="375"/>
+        <Caret Line="510" Column="87" TopLine="486"/>
       </Position30>
     </JumpHistory>
   </ProjectSession>
diff --git a/applications/json_packager/locale/jsoneditor.en.po b/applications/json_packager/locale/jsoneditor.en.po
index 44f325a64..cb0b69456 100644
--- a/applications/json_packager/locale/jsoneditor.en.po
+++ b/applications/json_packager/locale/jsoneditor.en.po
@@ -68,8 +68,6 @@ msgstr ""
 "as a JSON update file\n"
 
 #: tfrmmain.editdownloadzipurl.hint
-#, fuzzy
-msgctxt "tfrmmain.editdownloadzipurl.hint"
 msgid ""
 "Download URL:\n"
 "Include the FULL url needed to download the package Zip file\n"
@@ -108,8 +106,6 @@ msgid "Save As"
 msgstr "Save As"
 
 #: tfrmmain.lbldownloadzipurl.caption
-#, fuzzy
-msgctxt "tfrmmain.lbldownloadzipurl.caption"
 msgid "Download URL:"
 msgstr "Download URL:"
 
@@ -191,13 +187,6 @@ msgid "Attempting to Open URL"
 msgstr "Attempting to Open URL"
 
 #: tfrmmain.stringpackagefiles.hint
-#, fuzzy
-#| msgid ""
-#| "Package Files:\n"
-#| "[Add]:  to make a new entry\n"
-#| "[Remove]: Remove last entry\n"
-#| "lpk filename: i.e. mycontrol.lpk\n"
-#| "Version: The FULL version (i.e. not 1.0 but 1.0.0.0)\n"
 msgid ""
 "Package Files:\n"
 "[Add]:  to make a new entry\n"
@@ -220,25 +209,21 @@ msgid "Compiled with FPC V:%s and Lazarus V:%d.%d%s for the %s - %s platform%s%s
 msgstr "Compiled with FPC V:%s and Lazarus V:%d.%d%s for the %s - %s platform%s%s"
 
 #: umain.rsdownloadzipurld
-#, fuzzy
 msgctxt "umain.rsdownloadzipurld"
 msgid "- Download URL does not contain the zipfile name"
 msgstr "- Download URL does not contain the zipfile name"
 
 #: umain.rsdownloadzipurli
-#, fuzzy
 msgctxt "umain.rsdownloadzipurli"
 msgid "- Download URL is too short or missing"
 msgstr "- Download URL is too short or missing"
 
 #: umain.rsdownloadzipurli2
-#, fuzzy
 msgctxt "umain.rsdownloadzipurli2"
 msgid "- Download URL is incomplete"
 msgstr "- Download URL is incomplete"
 
 #: umain.rsdownloadzipurls
-#, fuzzy
 msgctxt "umain.rsdownloadzipurls"
 msgid "- Download URL should start with \"http\""
 msgstr "- Download URL should start with \"http\""
@@ -331,6 +316,10 @@ msgstr "(You can toggle these hints on/off in the Help menu)"
 msgid "Update"
 msgstr "Update"
 
+#: umain.rsupdatejsonsf
+msgid "Update file \"%s\" failed to load correctly."
+msgstr "Update file \"%s\" failed to load correctly."
+
 #: umain.rsupdatezipnam
 msgid "- Update zip name is too short or missing"
 msgstr "- Update zip name is too short or missing"
diff --git a/applications/json_packager/locale/jsoneditor.es.po b/applications/json_packager/locale/jsoneditor.es.po
index 6c62a55a1..d256abe85 100644
--- a/applications/json_packager/locale/jsoneditor.es.po
+++ b/applications/json_packager/locale/jsoneditor.es.po
@@ -323,6 +323,10 @@ msgstr "(Puedes cambiar estos consejos en el menú Ayuda)"
 msgid "Update"
 msgstr "Actualización"
 
+#: umain.rsupdatejsonsf
+msgid "Update file \"%s\" failed to load correctly."
+msgstr "Error al cargar \"%s\" correctamente el archivo de actualización"
+
 #: umain.rsupdatezipnam
 msgid "- Update zip name is too short or missing"
 msgstr "- El nombre del zip es muy corto o está vacío"
diff --git a/applications/json_packager/locale/jsoneditor.po b/applications/json_packager/locale/jsoneditor.po
index 93eb1100f..782fa9a60 100644
--- a/applications/json_packager/locale/jsoneditor.po
+++ b/applications/json_packager/locale/jsoneditor.po
@@ -116,7 +116,7 @@ msgstr ""
 
 #: tfrmmain.mnu_helpdisablewarnings.caption
 msgid "Disable warnings"
-msgstr "Desactivar Advertencias"
+msgstr ""
 
 #: tfrmmain.mnu_helpshowhints.caption
 msgid "Show Popup Hints"
@@ -282,6 +282,10 @@ msgstr ""
 msgid "Update"
 msgstr ""
 
+#: umain.rsupdatejsonsf
+msgid "Update file \"%s\" failed to load correctly."
+msgstr ""
+
 #: umain.rsupdatezipnam
 msgid "- Update zip name is too short or missing"
 msgstr ""
diff --git a/applications/json_packager/umain.pas b/applications/json_packager/umain.pas
index d873589a5..5a9e420e2 100644
--- a/applications/json_packager/umain.pas
+++ b/applications/json_packager/umain.pas
@@ -37,6 +37,9 @@ unit umain;
             Added Const C_DEBUGMESSAGES=TRUE/FALSE
   0.1.14.0: Various changes (GetMem)
             BugFix: FormCloseQuery
+  0.1.15.0: BugFix: File/Save didn't add the '.json' suffix in Linux
+            Addition: After Loading, run validation tests
+  0.1.16.0: ??
  }
 {$mode objfpc}{$H+}
 
@@ -218,6 +221,7 @@ resourcestring
   rsYouMayNeedTo = '(You may need to restart the app to see the change)';
   rsThereAreOneO = '- There are one or more .lpk entries with the same name.%s'
     + '- Every .lpk entry must have a unique name.';
+  rsUpdateJsonSF = 'Update file "%s" failed to load correctly.';
 
 { TUpdatePackageData }
 
@@ -492,13 +496,24 @@ begin
         editName.Text := JSONPackage.UpdatePackageData.Name;
         editDownloadZipURL.Text := JSONPackage.UpdatePackageData.DownloadZipURL;
         cbForceUpdate.Checked := JSONPackage.UpdatePackageData.ForceUpdate;
-
         stringPackageFiles.RowCount := JSONPackage.UpdatePackageFiles.Count + 1;
         for i := 0 to JSONPackage.UpdatePackageFiles.Count - 1 do
         begin
           stringPackageFiles.Cells[0, i + 1] := JSONPackage.UpdatePackageFiles.Items[i].Name;
           stringPackageFiles.Cells[1, i + 1] := JSONPackage.UpdatePackageFiles.Items[i].Version;
         end;
+          if ValidationFailed then
+          begin
+            if (slErrorList.Count > 1) then
+              ShowMessage(Format(rsUpdateJsonSF, [ExtractFileName(sJSONFilePath)]) + LineEnding
+              + LineEnding + rsOneOfTheReqn + LineEnding + slErrorList.Text +
+                LineEnding + rsFixThenTryAg)
+            else
+              ShowMessage(Format(rsUpdateJsonSF,[ExtractFileName(sJSONFilePath)]) + LineEnding
+              + LineEnding + rsOneOfTheReq1 + LineEnding + slErrorList.Text +
+                LineEnding + rsFixThenTryAg);
+            Exit;
+          end;
       end
       else
         ShowMessageFmt('There was a problem loading "%s" - is it corrupted or in the wrong format?',
@@ -725,7 +740,7 @@ begin
   if bForceSaveAs or (sJSONFilePath = '') then
   begin
     FileSaveAs1.Dialog.InitialDir := sUpdateDirectory;
-    FileSaveAs1.Dialog.FileName := 'update_' + ExtractFilenameOnly(editName.Text);
+    FileSaveAs1.Dialog.FileName := 'update_' + ExtractFilenameOnly(editName.Text) + '.json';
     if FileSaveAs1.Dialog.Execute then
       sJSONFilePath := FileSaveAs1.Dialog.FileName
     else