Mobile (android) - DLCUnavailable?

I purchased the castlevania DLC, can see "DLC purchased" with the green check mark in the DLC store, have tried restarting the game and restarting my phone, but at launch I just get "DLC Unavailable" with the option to retry or continue without DLC. Tapping Retry doesn't do anything aside from instantly reloading the error message. I'm online (on the same network I just purchased the DLC on, so definitely no issues there)

Any tips?

Edit:

Restore purchases - no dice

Restore backup - no dice

Reinstalled game - no dice