(I’d like you to read the answers and reconsider it after reading the additional information in the end of the post)
Does this occur in a clean, blank project with no additional content or is it limited to one project?
When I create an empty project and migrate the contents, the issue is gone. It loads all the Blueprints correctly, with no replacement.
What steps can I take to reproduce this on my end?
I believe by trying to load my project in your computer. I can send my contents to you if needed, just tell me the best way to send it to you without leaving it open for anyone else to download.
Have you tried fixing up redirectors in your project’s content folder? To do so, RMB the Contents folder in editor and press “Fix Up Redirectors”
No, I didn’t. I can try this when it happen again (see the additional info)
Were the assets outside of the contents folder and then moved into it? What method did you use to move them?
All of them migrated, using the editor.
ADDITIONAL INFO:
1 - So, after reopening my project today, The PLACEHOLDER references are gone and I could compile it. Its working fine so far… and this left me thinking in how we could reproduce this in another environment. Detail:did not make any change inside the project since the crash.
2 - After asking several opinions from different programmers, some of them already passed through this and said it’s probably a problem inside the BP editor, resultant of some blueprint classes with high number of dependencies. In fact, my blueprint class in question is depending on a great number of blueprints (34 to be exact) and some of them circular. The editor can’t solve which one to load first.
This could explain the randomness of this issue, considering that today I could open it with no problem.
Some others said that this issue could be linked to the changing folders bug, which rather than changing the actual files, it just changes the link inside a virtual file system.