start record blueprint node not work

[ismywill]

I am good at English，Please forgive me.I setuped the VideoRecordGameViewportClient as "Game viewport client class" then created the actor that inherited class “VideoRecordActor” and drag it to my level，but it is not work,and log is as follows:
VideoRecorder: Error: Stopping video record without matched start.

VideoRecorder's log only that one line.Please help me , thank you very much.

Unreal engine version is 4.26.2 and Blueprint Screenshot is as follows

[ismywill]

I ReStart my engine ,it work ,thank you for your amazing Plugin!

[I8Robot]

I ReStart my engine ,it work ,thank you for your amazing Plugin!

Is it works without display? If I deployment UE on server, no display(screen)，can it still work?