Game freezes / stops rendering randomly if physics substepping is enabled. This happens in 4.17.2 and 4.18. We didn’t experience this in 16.3. Steps to reproduce: open attached example project build packaged shipping game WindowsNoEditor / by the book start packaged game leave idle running get a …

Look here Packaged Game freezing !FEventWin::Wait(unsigned int WaitTime, const bool bIgnoreThreadIdleStats) Line 1158 C++ - Programming & Scripting - Epic Developer Community Forums

Substepping unusable: causes freeze since 4.17

Development World Creation

anonymous_user_2dad8d53 (anonymous_user_2dad8d53) October 24, 2017, 10:43am 2

I also have random random freeze in shipping. Could it be related to these bugs?