Packaged Game freezing !FEventWin::Wait(unsigned int WaitTime, const bool bIgnoreThreadIdleStats) Line 1158 C++

I posted on the forums.
https://forums.unrealengine.com/development-discussion/c-gameplay-programming/1380031-packaged-networked-game-freezes-hangs-for-client-in-4-17-2-need-epic-engine-programmer-response