Have you recently saw strange things happened with prestige missions?

First of all, when i complete missions they can randomly became avaliable again out of nowhere.

Also i have noticed that even if they are supposed to change every 24 hours or every day (its same lol) they can change in the middle of day out of nowhere while tommorow planned missions remain same.

Example i had Scared to death and Monstious Research missions for today and Nature of the beast and Monstrous Research for tommorow. I have completed today missions, the got marked as done, while in few minutes they suddenly became avaliable again, while tommorow missions remained same.

Also i had Scared to death and Monstious Research missions for today (completed them again) and then out of nowhere they changed to Scared to death (became to do again) and Arms Appropriation while tommorow missions remained same as before.

you noticed anything strange with them? I heard they sometimes dont give prestige