UE4.27 spectator crach

I have a spectator in the game. The spectator will play video on its own client. Sometime it crash and I got this log:

LogWindows: Error: Assertion failed: bOk [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/MediaUtils/Private/MediaPlayerFacade.cpp] [Line: 2629]

I find the reason is that the queue size of VideoSampleSinks is larger than FMediaPlayerQueueDepths::MaxVideoSinkDepth.
So what I can do to avoid it?