iPhone 13 Pro Max iPhone Reminders Deleting Time?

[tennisfan13]

I have reminders that pop up daily on my phone at certain times. One of the reminders is so that I remember to take a medication on time. It will go fine for a few days and then my iPhone will delete the time. The reminder is still there, but the time disappears. Any idea how to fix this?

 

[now i see it]

I have found that it’s better to set a reminder for important things in the Calendar App with an alert set instead of Reminders App because the Calendar App will pop up a notification mid screen which you can defer to a later time to nag you again. It’ll keep bugging you with pop ups until you cancel the alert.
Can also set it up for recurring event easily.