Hmm, that’s really too bad! It might be under warranty though, so you might be able to get a free replacement - it should not have done that. Was it 3s or 4s you were running? I’ve run a 3s and a 12x6 without any overheating...
4S 1500mAh 4S 75C
Spektrum RC Avian 60 Amp 3-6S
11x7E prop