@Michael I forgot to say that the last time that it happened to me (when i recorded the video) i also took some logs to track the bug, also the unity 8 log. You'll find attached. Tell me if you need some other else, maybe I already have it. Ill try to do also what you are asking.
** Attachment added: "unity8.log" https://bugs.launchpad.net/canonical-devices-system-image/+bug/1584348/+attachment/4674941/+files/unity8.log -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity8 in Ubuntu. https://bugs.launchpad.net/bugs/1584348 Title: app blocked after suspend Status in Canonical System Image: Incomplete Status in unity8 package in Ubuntu: Incomplete Bug description: When you let an app opened after a while (about hours) and after that you try to work with it the app sometimes does not respond. I saw it with a lot of apps (camera, dialer, facebook, telegram, webbrowser... Atached you'll find a video where you can see me trying to use camera app without any result. To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1584348/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp