Furnace/Armor slot bug on iPad, android, and iPhones

I was just playing my single player world and about to cook my iron in the furnace when the bug happened, I could only put in iron and could not take out the iron and could not put anything out, couple days later on my friends world when I could put armor on and could not take it off.

1. Put material in furnace/put on armor
2. Try to take out/ off and then it won't come off/out