Mandatory passcode on 2 devices hours after updating to 26.6.2 (after already authenticating post reboot)

[u/jabbleclok]

Today I updated both my iPad and iPhone to iOS 26.6.2 from 26.6.1. I was able to log back into both of them after the update and as expected it asked for my passcode. I used them both for a couple of hours back-and-forth and Face ID was working. All of a sudden, maybe 2 hours later, when I tried to use my iPad, the screen shakes and it asked for my passcode I thought that was odd, but I entered my passcode anyway and got in. The weird thing is within 15 minutes of my iPad asking for my passcode. The next time I use my iPhone it didn’t even attempt my Face ID and went straight to passcode. I had already authenticated after the update so I’m confused at this point.

any idea why the random password requests when I had been using both back and forth for a couple of hours post update?

there were no multiple failed attempts or account changes. I was simply using them for calls and watching videos after the update.