Has this been resolved yet?
I am experiencing a similar problem.
With a custom class added and successfully build from VS, I made a tiny change and recompiled the C++ code in the editor, and it failed for the same error as aforementioned (changes not allowed in generated files). I removed the .conflict file and launched a build in VS. No dice, it failed with a bunch of errors. I launched another build in the editor, and it completed “successfully.” Upon reviewing the blueprint of the class in question, the default parameter that I had changed to do this test, had not changed. I removed the blueprint, recompiled in editor (successful) and re-created the blueprint, and it still had not changed.
It seems that the recompile in game feature is breaking the VS build somehow, but after continuous in editor rebuilds, it states that it recompiled successfully but it really didn’t do anything.
Please let me know what a suggested course of action might be, or if you need more information. I could also create another thread if desired.
Thanks,