Views stack on each other

Hello,

I have two Hedge Hogs with the same problem.
Problem occurred in software version 3.19.1 and 3.20.
A full install has been performed.

When you call a view it is placed over the current view.
If you save an empty view, then open a view with one or more screens, it opens neatly, then if you press the empty view, the screens do not close.
As a result, over time you will have opened many screens on top of each other and the Hog will therefore freeze.

Anyone familiar with this problem?