A family of Microsoft word processing software products for creating web, email, and print documents.
This has been reported by numerous users. Do submit customer feedback on this. https://answers.microsoft.com/en-us/msoffice/forum/all/giving-feedback-on-microsoft-word-or-other/8df81a9b-84aa-46ef-bf88-24fb7fec96ba
As reported today by David Murphy:
Some people are reporting a possible workaround now, try to widen the transcribe panel by dragging the edge of the panel to the left and test if that resolves the problem.