Dictation stops working after about 30 seconds on Catalina
No matter what I do, dictation is no longer working on Catalina.
I've tested the problem by setting up a new user account with everything but the essentials turned off, and the problem persists there too: I have Voice Control off (as advised), App restrictions off, am connected online, etc, but Dictation (which used to work fine in Big Sur) now cuts off after about 30 seconds.
I've tried with TextEdit and the Notes app with the same result.
I'm on an iMac 5k 27" 2020 (oddly not listed in your drop-down menu of other devices). I've also tried on a retina 54 27" 2015, also running Catalina, and the exact same thing happens there.
Any suggestions? I've rebooted, changed user, tried with and without external mic and am run out of ideas now. It works on my M1 MacBook running Monterey. So is this a Catalina issue?
iMac 27″