STATUS_HEAP_CORRUPTION when copying statics in the Map Editor

Since one of the latest patches my game crashes when I select 2 or more static objects and try to copy them.

This is the error message:
BeamNG.drive 0.21.3.0 0xC0000374 STATUS_HEAP_CORRUPTION

Any way to fix this?

 

Im no expert but you may have run out of ram? Someone correct me if im wrong

 

Can't be, if it's no bug. I never run out of RAM when playing BeamNG and copying multiple statics used to work.
No matter how simple the statics are, there is a high chance it crashes if I try to copy them.
--- Post updated ---
Ok, update:
It seems to only happen with the old level editor, so I guess I just have to adapt to the new one.