I had several instances a couple months ago where I would get a key not detected message while I was driving. I don’t remember exact wording, but it would inform me that once this drive stops, I may not restart without the key.
In one instance, both fobs had been in the car, and then one left (we were doing a drop off), so I presumed it had initially latched to the passenger’s fob. But the message did not happen right away, at least 10 to 20 min later. I also had a separate occurrence of the same message but without any possible interaction of the second fob.
I was on 2020.16.* or 2020.20.* at the times of these instances.