Debug: Pure virtual function being called while application was running

Development Platform & Builds Debugging, Optimization, & Profiling
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Keep inconsistently getting this error when playing/compiling/hot-reloading, not sure how to debug it as I dont see much info here:

[2020.07.23-21.48.17:544][765]Message dialog closed, result: Ok, title: Message, text: Pure virtual function being called while application was running (GIsRunning == 1).

[2020.07.23-21.48.17:544][765]LogWindows: Windows GetLastError: The operation completed successfully. (0)

[2020.07.23-21.48.20:103][765]LogThreadingWindows: Error: Runnable thread TaskGraphThreadNP 2 crashed.

[2020.07.23-21.48.20:103][765]LogWindows: Error: === Critical error: ===

[2020.07.23-21.48.20:103][765]LogWindows: Error: 

[2020.07.23-21.48.20:103][765]LogWindows: Error: Fatal error: [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/Core/Private/Windows/WindowsPlatformMisc.cpp] [Line: 475] 

[2020.07.23-21.48.20:103][765]LogWindows: Error: Pure virtual function being called

[2020.07.23-21.48.20:103][765]LogWindows: Error: 

[2020.07.23-21.48.20:103][765]LogWindows: Error: 

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff8de9aa799 KERNELBASE.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff88b48e9e6 UE4Editor-Core.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff88b491dc8 UE4Editor-Core.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff88b21e53d UE4Editor-Core.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff88b4ae890 UE4Editor-Core.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff8ccab6984 VCRUNTIME140.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff891099704 UE4Editor-CoreUObject.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff8912d0233 UE4Editor-CoreUObject.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff891296d31 UE4Editor-CoreUObject.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff89129e0ae UE4Editor-CoreUObject.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff88afc7ad9 UE4Editor-Core.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff88afc8b1d UE4Editor-Core.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff88afd0eeb UE4Editor-Core.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff88b4b025b UE4Editor-Core.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff88b4a7c30 UE4Editor-Core.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff8dfa97bd4 KERNEL32.DLL!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: [Callstack] 0x00007ff8e196ce51 ntdll.dll!UnknownFunction []

[2020.07.23-21.48.20:103][765]LogWindows: Error: 

[2020.07.23-21.48.20:103][765]LogWindows: Error: Crash in runnable thread TaskGraphThreadNP 2

[2020.07.23-21.48.20:131][765]LogExit: Executing StaticShutdownAfterError

[2020.07.23-21.48.20:131][765]LogWindows: FPlatformMisc::RequestExit(1)

[2020.07.23-21.48.20:131][765]LogCore: Engine exit requested (reason: Win RequestExit)

[2020.07.23-21.48.20:137][765]Log file closed, 07/23/20 14:48:20