Anyone else having this problem?

I was fighting in arenas and had a 10 win streak when I had my 4* Gulk, 4* Domino and 4* Magik. I had already won my first fight with Gulk and then when I was starting my 4* Domino match the game just shut off. The game rebooted and then I started the fight again and again the game crashed. After the second time it counted the fight as a loss. Then of course I lost my match with Magik and lost my win streak and now I have to start over again so I can get to my next milestone. This has happened to me twice in the last couple of weeks. The first time didn't bother me much because I wasn't in such a hurry to get the milestone, but this time it would've saved me a lot of time and fights if the game wouldn't have crashed. Not looking for anything and I'm not going to submit a ticket, but has anyone else had this problem?