Unreal Engine 4.22 Preview

[anonymous_user_fbe2d247]

I got a project which I have successfully opened with Preview 2, crashing with Preview 3. I went to the Config.ini and removed to default editor map and could open the project. Other maps opened successfully, but the one originally as the default editor map was corrupted somehow, since opening it again crashed the editor. I just took a backup copy and overwrote it. It is unknown how that map ended up corrupted…

It might be happening with you.

What is crash log saying for you?

For our project it seems to be related to UMaterialParameterCollection.