Navigation with bottom view tabs disabled?

I find occasionally that the view tabs at the bottom of the screen become unresponstive to mouse clicks. Is this a setting I have unwittingly changed? I have to double click on the active tab (upper left) to get out of it and choose another model view. NOT sure how I’d get to a layout page in this circumstance…

View Menu > Viewport layout > Show viewport tabs should get your tabs back…

There is also the _ViewportTabs command.

I’ll try that next time. But I believe all it does is show or hide the tabs when they are inactive to choose a view.

Toggling the visibility of the tabs should get them to be responsive again.

Yes, that command fixes it. Thanks! But I don’t know how they get frozen in the first place.