I have plasma set to use 4 desktop activities, one for each virtual desktop. For some reason there are 6 activities (why?) and at each login it can, and occasionally does, happen that a different activity is mapped to a virtual desktop. The configuration will stay for days, even a couple of weeks, and then, all of a sudden one morning when I boot up, an activity will appear on the 'wrong' virtual desktop (not a big problem) and one of the unused activities will appear on a virtual desktop (definitely a nuisance). How can I delete the undesired activities (there is no delete X when I zoom out)? Why does the one appearing on virtual 1, vt 2, etc. keep changing without any action on my part?
