I once had a problem with a new Xiaomi phone where the OS would put the clock app to sleep and the prevent it's background activity, missed 3 alarms before figuring it out.

[–] drew_belloc@programming.dev 4 points 10 months ago (1 children)

I had the same issue, but i was using a third party app because i don't really like the default one and a year later the problem started, now i am forced to use the default app if i don't wanna my boss waking me up again

[–] hstde@feddit.de 10 points 10 months ago (1 children)

You can disable the optimisations for specific apps, should be under battery settings. At least that did it for me.

[–] drew_belloc@programming.dev 2 points 10 months ago

I did the day i installed the app, i really don't know why it stopped working