Since early November 2026, the "Transcribe" → "Upload audio" feature has stopped working in the desktop version of Word. The button is unresponsive; it neither opens the file picker nor displays any error messages.
Environment: Windows 11, Word for Microsoft 365 (version 2610, build 16.0.20527.20150, 64-bit). I am using a personal Microsoft account (Hotmail); Office also shows an activation for "Microsoft 365 Apps" via a product key.
I have used this feature for approximately 15–18 months without any issues. Real-time dictation continues to work.
I have already attempted the following: a quick repair, an online repair, reinstallation, running in safe mode, resetting settings, and checking both "connected experiences" and OneDrive integration. None of these steps have resolved the issue.
Microsoft Support suggested that my access to this feature via the desktop version of Word might have been a temporary trial for certain users, but they did not provide any official documentation to confirm this.
My question is: Is there a known issue with Word version 2610, a recent change in eligibility, or an official, documented removal of the "Transcribe" feature for personal accounts? How can I restore the ability to upload MP3 files using the desktop version of Word for Windows?
I would appreciate a technical response supported by official documentation. My goal is to continue using the installed desktop application, rather than Word Online.