project (begin at ue4.4) crashes always under ue4.6.0/ue4.6.01

I see E_OUTOFMEMORY when loading a texture. Haven’t had this myself so grasping at straws here. Check task manager when loading up till the point where it crashes, see how much memory is available.
I’d try deleting the texture after and re-adding it.
I’ve found 4.6 to be a big more top heavy than the versions before.