Hi C 
,
we have similar problem on 4.15.3. Our dedicated server will crashing randomly on this. We cannot reproduce it but it only happens when there are more people (5 - 10) and it can crash even one minute after map load.
Any ideas how to fix that? We losing players due to that. If you want, you can download our game, try to start host and play game for 10 people and that crash will happen for 100 %, I can assist with it. Or I can send full dump. [Game with server download][1]
