Regarding the first problem I do not know how to provide you with more details. The shortcut just stops working after a while and I have no clue why.
The second problem - if I run as foreground process I get the error that only one foreground process can run at a time. So yes same problem occurs as foreground that the RPA is run twice when clicked on the right pane of Assistent. The RPA consists of an excel activity and a form activity. Running as background, when the form opens it opens two identical forms because the RPA is run twice instead of once.
Hope my feedback is helping