Upgraded project from 4.14 to 4.15 crash

Hi.

I upgraded a project from 4.14 to 4.15 and it keeps crashing when I try to play the level on the editor.
It was working fine on 4.14.

On the crash reporter window I only see this message:
“You do not have any debugging symbols required to display the callstack for this crash.”

Any idea what could be happening?. Log file attached: Log file

regards

Already found the issue. It was nothing to do with engine code, just making a call on a nullptr on my side.