@advocatux You are right. Maybe it's better just to reinstall the os.... But I think I'm not alone with this issue:
https://github.com/ubports/ubuntu-touch/issues/195

@advocatux I switched from RC channel back to stable. System Settings -> About shows Ubuntu 15.04 (r3). But the App still freeze.

@advocatux Ubuntu 15.04 (r15)
PS: I have UBports Boot-Logo on my phone...

@advocatux I understood. But I wouldn't have OpenStore on my phone if it would Cannonical image - right? I also can switch to different release channels like: stable/rc/dev. So far I know it's also an UBports feature.

@flohack yes. I switched to UBports ca. 1.5 years ago... I have OpenStore on my phone etc...

Do you mean I should install UBports again?

@advocatux
OS-Build-Number:
r15
Ubuntu 15.04

Hey guys,

I have some wierd behavior on my Phone App.

first thing:
Every time I call somebody, UI of phone app freeze but the connection works. It's not possible to push any buttons. I have to kill the app by swiping from the right side. If somebody calls me - Phone App works as expected.

second thing:
The history of called contacts works fine. But, if I push phone button (green button on the bottom). App doesn't open last called number, instead it opens a number I called some month ago.

somebody an idea how I can fix it?

Hardware:
BQ E4.5
Channel: RC

Best regards from Germany!!!