Hey ,
Sorry for delay in response. I moved this post to Bug Reports section so it can get attention it needs.
You mentioned that it crashed on Play when you enabled Dedicated Server. Does project crash on Play without that enabled? Can you and attach crash logs for us after it crashes? You can find them here:
If you are experiencing a crash, then
please provide us with the .LOG and
.DMP files from your
[project]\Saved\Logs folder.
Additionally, you can please send us
CrashReportClient.log file located
in C:\Program Files\Unreal
Engine\4.0\Engine\Programs\CrashReportClient\Saved\Logs.
Thanks!