This is still happening, even in the June, 2019 desktop release. The top ribbon tabs become unresponsive. All other ribbon icons and features work fine, but you cannot select any other tabs unti...
I can re-create it everytime. All I do is open up a *.pbix file. The ribbon as others have mentioned freezes while everything else appears to be working. The minimize / maximize also works for me as a work-around.