NUM_ELEMENTS_IN_POOL has been increased to try and avoid the bug.
A user has reported that he gets a crash on his machine upon restarting after enabling the 'Generate Mesh Distance Fields' option within the Project Settings > Rendering options
The callstack for this crash seems vague and the context doesn't provide any immediate or useful information to give the user an idea of where/how the crash is occurring.
Unable to Reproduce Crash based off User Description
UE4Editor_Core!FThreadStatsPool::GetFromPool() stats2.cpp:1001
UE4Editor_Core!FQueuedThread::Run() threadingbase.cpp:424
UE4Editor_Core!FRunnableThreadWin::Run() windowsrunnablethread.cpp:74
Head over to the existing Questions & Answers thread and let us know what's up.