Ok, I did some more testing.
Currently unable to create a new project, but I deleted all config files and just tested the skeletal meshes one by one without crash, they only crashed in my blueprint.
I then was able to pin point the issue to the lead pose component I use to control all skeletal mesh animations in that blueprint.
Was able to recreate the issue with a fresh blueprint actor AND a skeletal mesh using a different skeleton, so I´m pretty sure there is something wrong with that lead pose component node that doesn´t like GPU skin cache…
I wasn´t able to test in an empty/new 5.4 project at the time, but I tested in a 5.3 project and it didn´t crash there.
Very simple to recreate:
- Create blueprint actor.
- Add two skeletal meshes (name one leader, one follower)
- In the constructionscript, add a “Set Leader pose component”.
- Assign leader and follower.
- Compile.
- Hit “Play in editor”.
- You should crash.
If anyone could confirm this happens not just for me/this project when using 5.4, I would really appreciate it!