Error when upgrading skill cards

I have a problem uploading skill cards in horde game mode. It makes me improve and when I improve it does nothing


Same here. I’m not sure why, but it acts like its giving me the full amount needed to upgrade, and then I upgrade, and it doesn’t do anything. I restart the game for it to tell me I didn’t even have enough cards to upgrade to begin with…

Two threads on this today.

A new bug happening, or maybe just an old one rearing it’s head?

I upgraded a card today with no issues though I’ve had the bug in the past. Edit: card was upgradable through duplicates and not using coins.

Please be specific when posting and include what card, level, etc.

Might be a pattern.

My problematic card was cold finish.

Also watch your coins to see if they disappear though the upgrade fails.