"insufficient transcript" messages

over the past few weeks I have experienced a problem where almost all of my meetings don't have "sufficient transcript" to generate a summary or next steps.   These meetings range from 30 minutes to 90 minutes.   The meetings have very good quality.

I had become very dependent on this feature, and am concerned I now need to revert to previous practice or pay for a third party subscription.

I have searched the boards for other people with this same issue;  I don't see any that were successfully resolved.