FBM: Inventory won’t update with new quantity and handling time?

Pretty basic change, FBM and we ran out of our current inventory and have more arriving in 2 weeks. Tried to change the handling time to 14 days and update the quantity from 1 to 50. But when I hit save and it says the changes will take up to 15 minutes to be updated, it never actually updates.

Amazon continues to show 1 remaining and our regular 3 day delivery time. It’s been like this yesterday and today. I’ve tried both from my phone and computer and don’t understand why it won’t save the changes.

I also tried updating just the inventory and not the handling time and same thing, it reverts back to quantity of 1.