From file /home/phablet/.cache/upstart/unity8.log:
logviewer.neothethird_logviewer,ut-tweak-tool.sverzegnassi_ut-tweak-tool,openstore.openstore-team_openstore,ubuntu-system-settings"
[2017-08-27:00:05:54.788] qtmir.applications: Application["ubuntu-system-settings"]::requestFocus() - emitting focusRequested()
[2017-08-27:00:05:54.790] unity.topsurfacelist: raiseId(id=13) - do it now.
[2017-08-27:00:05:54.790] unity.topsurfacelist: move from=4 to=0
[2017-08-27:00:05:54.796] qtmir.surfaces: MirSurface[0x1a179b0,"unity8-dash"]::updateVisibility(false)
[2017-08-27:00:05:54.797] qtmir.surfaces: MirSurface[0x1a179b0,"unity8-dash"]::onAttributeChanged visible = false
[2017-08-27:00:05:54.811] qtmir.applications: Application["unity8-dash"]::setRequestedState(requestedState=suspended)
[2017-08-27:00:05:54.811] unity.topsurfacelist: move after (index=0,appId=ubuntu-system-settings,surface=0x0,id=13),(index=1,appId=unity8-dash,surface=0x1a179b0,id=1),(index=2,appId=logviewer.neothethird_logviewer,surface=0x2137e30,id=10),(index=3,appId=ut-tweak-tool.sverzegnassi_ut-tweak-tool,surface=0x1e107b0,id=6),(index=4,appId=openstore.openstore-team_openstore,surface=0xa2b130,id=5)
[2017-08-27:00:05:55.171] qtmir.surfaces: MirSurface[0x2137e30,"logviewer.neothethird_logviewer"]::stopFrameDropper()
[2017-08-27:00:05:55.171] qtmir.surfaces: Session[0x58c8a0,name="Main.qml"]::setState(state=suspended)
[2017-08-27:00:05:55.171] qtmir.applications: Application["logviewer.neothethird_logviewer"]::setInternalState(state=SuspendingWaitProcess)
[2017-08-27:00:05:55.185] qtmir.applications: ApplicationManager::onProcessSuspended - appId= "logviewer.neothethird_logviewer"
[2017-08-27:00:05:55.185] qtmir.applications: Application["logviewer.neothethird_logviewer"]::setInternalState(state=Suspended)
[2017-08-27:00:05:55.283] qtmir.applications: ApplicationManager::onProcessFailed - appId= "ubuntu-system-settings"
[2017-08-27:00:05:55.283] qtmir.applications: Application["ubuntu-system-settings"]::setInternalState(state=Stopped)
[2017-08-27:00:05:55.284] qtmir.applications: ApplicationManager::remove(appId="ubuntu-system-settings") - before "unity8-dash,logviewer.neothethird_logviewer,ut-tweak-tool.sverzegnassi_ut-tweak-tool,openstore.openstore-team_openstore,ubuntu-system-settings"
[2017-08-27:00:05:55.284] unity.topsurfacelist: removeApplication(ubuntu-system-settings)
[2017-08-27:00:05:55.295] unity.topsurfacelist: raiseId(id=1) - Model busy (modelState=2). Try again in the next event loop.
[2017-08-27:00:05:55.297] qtmir.applications: Application["unity8-dash"]::setRequestedState(requestedState=running)
[2017-08-27:00:05:55.298] qtmir.surfaces: MirSurface[0x1a179b0,"unity8-dash"]::updateActiveFocus() focused
[2017-08-27:00:05:55.315] qtmir.surfaces: MirSurface[0x1a179b0,"unity8-dash"]::updateVisibility(true)
[2017-08-27:00:05:55.316] qtmir.surfaces: MirSurface[0x1a179b0,"unity8-dash"]::onAttributeChanged visible = true
[2017-08-27:00:05:55.317] qtmir.applications: Application["ubuntu-system-settings"]::setRequestedState(requestedState=suspended)
[2017-08-27:00:05:55.318] unity.topsurfacelist: removeApplication after (index=0,appId=unity8-dash,surface=0x1a179b0,id=1),(index=1,appId=logviewer.neothethird_logviewer,surface=0x2137e30,id=10),(index=2,appId=ut-tweak-tool.sverzegnassi_ut-tweak-tool,surface=0x1e107b0,id=6),(index=3,appId=openstore.openstore-team_openstore,surface=0xa2b130,id=5)
[2017-08-27:00:05:55.318] qtmir.applications: ApplicationManager::remove(appId="ubuntu-system-settings") - after "unity8-dash,logviewer.neothethird_logviewer,ut-tweak-tool.sverzegnassi_ut-tweak-tool,openstore.openstore-team_openstore"
[2017-08-27:00:05:55.319] qtmir.sessions: Wakelock released "169"
[2017-08-27:00:05:55.319] unity.topsurfacelist: raiseId(id=1) - do it now.
[2017-08-27:00:05:55.324] qtmir.applications: ApplicationManager::onProcessStopped - appId= "ubuntu-system-settings"
[2017-08-27:00:05:55.324] ApplicationManager::onProcessStopped reports stop of appId= "ubuntu-system-settings" which AppMan is not managing, ignoring the event
[2017-08-27:00:05:55.845] qtmir.surfaces: MirSurface[0x1a179b0,"unity8-dash"]::updateActiveFocus() unfocused
[2017-08-27:00:05:55.850] file:///usr/share/unity8//Stage/Stage.qml:470: TypeError: Cannot read property 'x' of null
[2017-08-27:00:05:55.851] file:///usr/share/unity8//Stage/Stage.qml:470: TypeError: Cannot read property 'x' of null
[2017-08-27:00:05:55.853] qtmir.surfaces: MirSurface[0x2137e30,"logviewer.neothethird_logviewer"]::updateVisibility(true)
[2017-08-27:00:05:55.854] qtmir.surfaces: MirSurface[0x2137e30,"logviewer.neothethird_logviewer"]::onAttributeChanged visible = true
[2017-08-27:00:05:56.221] qtmir.surfaces: MirSurface[0x1a179b0,"unity8-dash"]::updateActiveFocus() focused
[2017-08-27:00:05:56.223] unity.topsurfacelist: raiseId(id=10) - do it now.
[2017-08-27:00:05:56.223] unity.topsurfacelist: move from=1 to=0
[2017-08-27:00:05:56.226] qtmir.surfaces: MirSurface[0x2137e30,"logviewer.neothethird_logviewer"]::updateVisibility(false)
[2017-08-27:00:05:56.226] qtmir.surfaces: MirSurface[0x2137e30,"logviewer.neothethird_logviewer"]::onAttributeChanged visible = false
[2017-08-27:00:05:56.227] qtmir.surfaces: MirSurface[0x1a179b0,"unity8-dash"]::updateVisibility(false)
[2017-08-27:00:05:56.227] qtmir.surfaces: MirSurface[0x1a179b0,"unity8-dash"]::onAttributeChanged visible = false
[2017-08-27:00:05:56.228] qtmir.surfaces: MirSurface[0x2137e30,"logviewer.neothethird_logviewer"]::updateVisibility(true)
[2017-08-27:00:05:56.229] qtmir.surfaces: MirSurface[0x2137e30,"logviewer.neothethird_logviewer"]::onAttributeChanged visible = true
[2017-08-27:00:05:56.230] qtmir.applications: Application["logviewer.neothethird_logviewer"]::setRequestedState(requestedState=running)
[2017-08-27:00:05:56.230] qtmir.applications: Application["logviewer.neothethird_logviewer"]::resume()
[2017-08-27:00:05:56.237] qtmir.applications: Application["logviewer.neothethird_logviewer"]::setInternalState(state=Running)
[2017-08-27:00:05:56.237] qtmir.surfaces: Session[0x58c8a0,name="Main.qml"]::resume state=suspended
[2017-08-27:00:05:56.238] qtmir.surfaces: MirSurface[0x2137e30,"logviewer.neothethird_logviewer"]::startFrameDropper()
[2017-08-27:00:05:56.238] qtmir.surfaces: Session[0x58c8a0,name="Main.qml"]::setState(state=running)
[2017-08-27:00:05:56.240] unity.topsurfacelist: move after (index=0,appId=logviewer.neothethird_logviewer,surface=0x2137e30,id=10),(index=1,appId=unity8-dash,surface=0x1a179b0,id=1),(index=2,appId=ut-tweak-tool.sverzegnassi_ut-tweak-tool,surface=0x1e107b0,id=6),(index=3,appId=openstore.openstore-team_openstore,surface=0xa2b130,id=5)
[2017-08-27:00:05:56.241] qtmir.surfaces: MirFocusController::setFocusedSurface(qtmir::MirSurface(0x2137e30) )
[2017-08-27:00:05:56.241] qtmir.surfaces: MirSurface[0x2137e30,"logviewer.neothethird_logviewer"]::raise()
[2017-08-27:00:05:56.243] qtmir.applications: Application["unity8-dash"]::setRequestedState(requestedState=suspended)
[2017-08-27:00:05:56.246] file:///usr/share/unity8//Stage/WindowDecoration.qml:92:26: Unable to assign [undefined] to int
[2017-08-27:00:05:56.246] qtmir.surfaces: MirSurface[0x1a179b0,"unity8-dash"]::updateActiveFocus() unfocused
[2017-08-27:00:05:56.248] qtmir.surfaces: MirSurface[0x2137e30,"logviewer.neothethird_logviewer"]::updateActiveFocus() focused
[2017-08-27:00:05:56.249] qtmir.applications: ApplicationManager::updateFocusedApplication() focused "logviewer.neothethird_logviewer"
[2017-08-27:00:05:56.249] qtmir.applications: ApplicationManager::move - from= 1 to= 0
[2017-08-27:00:05:56.249] qtmir.applications: ApplicationManager::move after "logviewer.neothethird_logviewer,unity8-dash,ut-tweak-tool.sverzegnassi_ut-tweak-tool,openstore.openstore-team_openstore"
[2017-08-27:00:05:56.249] qtmir.applications: ApplicationManager::updateFocusedApplication() unfocused "unity8-dash"
[2017-08-27:00:05:56.251] qtmir.sessions: Wakelock acquired "174"