Menu bar unreachable

I have a problem with the menu bar of my application. When I start or update the ignition vision the menu bar is unreachable. I cannot click on any menu item. Sometimes no text is displayed on the menu bar at all. As soon as I click on a tab to open a window or make it go full screen, the menu bar works again.

My app used to work fine to some moment, from which on the behavior change to the above mentioned. Unfortunately I have no idea what triggered this.

Any idea what would that be?

Any insight to this would be highly appreciated.

I am on Ignition 7.8

Any insight to this would be highly appreciated.