iOS 17.6.1 intermittent sleep focus alarm failures

I have been using the sleep focus with alarms for several weeks, with my watch vibrating as the alarm, and have never had any issues up until this week. I updated to 17.6.1 last week and that is the only potential cause I can come up with. I have alarms set for 6am on MWF and 5:45am on Tu/Th. The 6am alarms were technically going, as the screen of my watch said good morning and had a stop button for the alarm, but it was not vibrating. I ended up waking 40 minutes after my alarm on Monday and 30 minutes late today. The 5:45am alarm yesterday worked as expected.

Troubleshooting:

Compared the alarm settings, they are identical other than the time of day.

I have been obsessive about making sure the sleep focus is enabled at night this week after it happened on Monday.

All I can come up with is that something with 17.6.1 caused this to break, but that seems odd considering the earlier days have worked fine.

For the rest of the week I have setup backup alarms in case this occurs again.