Another glitch

I was playing the tower tournament and when my omegasdragon attacked my omega froze for like 15 seconds all the other monsters were still moving and then my omegasdragon that has immunity to being stunned gets stunned for 400 second and then I lose.

Same thing happened to me 2 days ago when my Hellataur used poison water in the tower. Stalled for 15 seconds, but then fight continued as normal.

Another time about a week ago, when I used Last Stand with my starter, game stalled with animations, than Galvboss randomly took lethal (a la death revenge animation) damage despite their being no death revenge monsters on field.

Eater*

The thing that I don’t get is that omegasdragon is immune to stun yet he got stunned anyway