Not gaining Hero Point rewards?

Seasick Pirate

I've been saving up my Hero Points for a couple seasons and hit 10k when Rocket & Groot PvE ended. After finishing the Quicksilver PvP, and receiving (and accepting) my top 100 placement rewards, I realized I still had 10k HP.

Is this the maximum amount you're able to save now? Or is it the highest value they can display even though my total is higher? Neither one of these explanations seem likely to me, so not sure why my HP total is not increasing. Anyone have any ideas before I submit a ticket?

EDIT: My iso-8 and cover rewards are saving properly.