tab page category - tabs sometimes disappearing

Hi,

I've configured my sessions to use tabs. When I have mutiple tabs open, sometimes these tabs disappear when I close a session. I have to go through "all", click on a session that belongs to a disappearing tab and then the tabs are shown again.

Besides: when clicking on a session in the "all" view, the view switches to the the corresponding tab (if configured). This is not what I would like and/or prefer to have the option to disable.