App freezing (only screen, not sound)

Hello, I have a freezing issue on a iPad Air running 8.1.
Looks to me like this problem started when the RED skin was released. Have had several screen freezes untill now. Also send crash report. What happens is that the screen seems te be freezing bit by bit until it’s frozen all. Music continuous playing. Also the search screen pops open without letters. Have to close the whole app and start again to get it working again and then after 60-90 minutes it starts over again.
I don’t use a controller.

Would be really nice to get a reply Algoriddim…