Realm World Not Backing Up/Saving Progress

My realm is not backing up automatically. When I exit the realm and restart from launcher it does not back up either.

What I expected to happen was...:
The world should back up every 5 minutes.

What actually happened was...:
It backs up at random with seemingly no pattern, sometimes 8 hours apart.

Steps to Reproduce:
Launch Minecraft

play for longer than 10 minutes

exit the game

re-enter the game (No progress will be saved)