Sequencer never stops recording if I enable audio recording

Sequencer never stops recording if I enable audio recording.

Sequencer works fine unless I record audio (wav file).

I am not using movie render queue.

I have even deleted all my audio tracks, same issue (if output to wav is selected)

I think the issue might have started when I opened the take record panel, but I’ve now removed that and the recorder has not got anything associated with it.

I am utterly stuck, please help.