Opening an App built with 2017r3 in 2018r1.1 and then saving after making changes results in this message:
Saving Will Lose Data
If you proceed with the save, running the saved App hangs at the Launch Screen for a few seconds and the crashes with no errors indicated.
Likewise if you start a new project and then copy and paste from the project saved under 2017r3. No indication of what data will be lost. Checking all the obvious resources such as images, Plist addendums etc., they are all present.
I found a broken reference to a Plist snippet and assumed that “Saving Will Lose Data” was the culprit which caused my App to hang. Thanks for pointing me in the right direction. I’ve also saved several times now with the warning and no issues.
Like looking in the mirror. I’m usually looking at the problem.