Hello Dogcow-Moof, here's what we know:
- It happens with 18 and 18.0.1, but not 18.1. That's my experience.
- It happens if you have transferred from an old iPhone to a new iPhone 16 (the variant does not seem to matter although the majority seem to have Pros, Max or otherwise).
- It goes away if you power-cycle the device every 24h; the 24h seems to be relevant. I did a force-reset late afternoon one day and it stopped working late afternoon the following day.
So when you say it happens to very few users, that might be true across the majority of iPhone 16 users. But what happens if you filter out:
- People who habitually turn their mobile off once a day (e.g. overnight)?
- People who did not use the transfer from an old iPhone to the iPhone 16? (Which would probably pull in ex-Androiders)?
My suggestion would be to take an out of the box iPhone 16 Pro [Max]. Transfer from, say, an iPhone 11 Pro Max that has been used (i.e. not a virgin one, although you could try a virgin one to rule out the transfer process).
LMK if there is anything I can do to help with mine, assuming I can downgrade back to 18. But 18.1 fixes the issue. However, a recent recording had no sound, so I guess I have the mic issue. I'm deaf so I rely on others to point it out to me.