Are you sure you have the correct version of .sources?.
It has allways been possible to have the .sources at the .exe (I have allways done it that way), (are you sure that the right vm is started, clicking on an image might launch a different vm if you have multiple).
What is the output of `OSPlatform current potentialLocationsOfSourcesFile` ?
To debug:
Change PharoFilesOpener>>#ignoreIfFail: no not send ifError: []. and the do `SourceFiles ensureOpen`
Best regards,
Henrik