Cant upgrade guardian

Another bug: recieved some donkey guardians today, but i cant upgrade it to next level even though i have enough pal food. It says i need to collect more guardians. He ***** game it just recieved them?

same applies to sledge, and yes i have enough pearls. Same message. Will send in (another pffffff…) ticket.

You need duplicates of guardians AND food or pearls...

Trust me have both

Is the bar full ? 1/1 or 2/2?