Crashing on renders

Hello I am rendering a scene from the unreal broadcast hypechamber and I crash everytime. This is the error message:

Assertion failed: !IsComplete()
[File:D:\Build++UE4\Sync\Engine\Source\Runtime\Core\Public\Async/Future.h] [Line: 183]

UE4Editor_Core
UE4Editor_Core
UE4Editor_MovieRenderPipelineCore
UE4Editor_MovieRenderPipelineCore
UE4Editor_MovieRenderPipelineCore
UE4Editor_MovieRenderPipelineCore
UE4Editor_MovieRenderPipelineCore
UE4Editor
UE4Editor
UE4Editor
UE4Editor
UE4Editor
UE4Editor
UE4Editor
kernel32
ntdll

Hi there @stebw

Is this the same issue? Rendering a movie crashes after warming up