Mutant Heavy Attack

Dizastar

Has anyone else noticed that your heavy attacks are sticking in the "wind up" phase when using a heavy attack in arena? I have noticed it on Rogue, Cable, Nightcrawler, and Wolverine. The first time I thought my phone just froze, on Android, but then I got attack while I was a statue. I tried to replicate it with other classes, but Mutant has been the only one to give me issues.