Unreal crashes upon hitting play (4.22 preview 1)

every time I hit play on my UE4 project which I Just ported to 4.22 (I do have a backup of my 4.21 version of the same project, nothing’s different between them) it will cause the game to crash and the project goes completely unstable. I have tried removing each item from the project until I had nothing left to remove.
any ideas?
thanks.

EDIT: having looked further into it, I have discovered that I am having a problem with my actual engine, and not the project. It is causing EVERYTHING to crash, any ideas? is it just this build, or am I stupid and need to change a setting and haven’t done it yet.

Well do not use a preview version of the engine when you develop for starters! Do you need a specific function that is only available in 4.22?

Make sure to deactivate the Magic Leap plugin in the Plugins. It has been set to be activated by default in this preview build of 4.22, and that crashes on play for people who do not have 4.22 :slight_smile:

Cheers