Crash on "Rebuilding Class Hierarchy"

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1

I have migrated a GameMode + a lot of stuff from a 4.7 project to 4.8.1
I can open all Blueprints and stuff without problems.
only thing that happens is this:
If I try to set Gamemode in World Settings with dropdown list, whole editor crashes (and crashes so hard, not even crash reporter shows up :slight_smile: ).
but all works if I just use arrow to set gamemode. So gamemode seems to be ok (all works).

what happens during “rebuilding class hierarchy” and how do I find out what exactly causes crash?

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2

Hi btengelh,

This is a known issue in 4.8.1 as reported here:

We have a fix that should be released as a hotfix in near future. There are some workarounds on that post that should help you until then.

3

OK great, waiting for hotfix :slight_smile: thanks !