Why didn't my pixel recognize my pattern after update?

[Cindy54]

When the update finished and went to use my pattern to log on, it didn't recognize my correct pattern. The clock was 5 hours earlier and the device was in airplane mode. I had to wipe the device and start over. what gives?

 

[Rowlette]

No problem with mine.

 

[theduder]

Sounds like some Apple stuff there...

 

[chemgeek]

This is a known intermittent bug. It seems to happen most often with tablets set up with multiple accounts, but I've had it happen to me during a trip. A factory reset and restore from backup is the only solution. If you enable a pattern or passcode it could recur. Fortunately, I have not had a recurrence.