Sometimes "views" stop working in the button of worksheet

Sometimes “views” in the button stop working and is locked and I have to use views in the toolbar or close Rhino and reopen it. Is there any solution to get rid this problem?

When multiple viewports are open clicking on a view tab near the bottom of the screen changes the active view, but leaves the multiple viewports visible.

When one viewport is open clicking on a view tab near the bottom of the screen changes the open view,

To toggle between one and multiple view open you can click on the tab in the upper left corner of the appropriate viewport.

Are you encountering different behavior?

I often work with single viewport.My problem is the bottoms I indicated with the black line. Sometimes this bottoms are frozen (stop working) and whatever I click on them they haven’t any response and no one of the views changes. for example when I’m working in perspective view sometimes these bottoms stop working and when I click on top the bottom doesn’t work and the view remains on perspective

image

The legal (un-cracked) versions do not have this problem…

– Dale