Crash after load stream level

I am experiencing random crashes after calling load stream level.

I am using blueprints and I simply unload and load maps using those nodes (Unload Stream Level/Load Stream Level). It works fine most of the time and there are times where I get this crash :


Any idea of what could be causing this?


Other info :

VR project (HTC Vive)

UE4 Version: 4.15.1-3348071+++UE4+Release-4.15

I created new simpler maps with only primitives and light sources, inside the same project using the same blueprint and I was not able to reproduce the crash.

So it appears to be linked with the maps themselves.

What could reside in those maps that could be causing this?

Hi i have the same problem did you find the solution ?