@James-T Hmm... thats quite interessting: I ve got the same two issues on my Nexus 4 for months (running OTA-12). Gonna download an painting-app - we will see...

@AppLee, @Flohack and @dobey: thank you very much!

Hello everybody,
I'm using a Nexus 4 with UT - it works perfectly, thank you to all developers!
There is just one issue: Is it possible to create a hot spot to offer access to other devices to share my internet-connection (I'm new to UT)? Network settings don't show this item ...
Thnx!