Designer: switching between scripting and GUI editors

in my project I need to switch very often between the project script library editor and the GUI editor.
Very often it happens that, after switching to the script editor, I cannot switch any longer to the GUI editor, i.e. double clicking on one of my windows in the Project Browser nothing happens. I must close the Designer and start it again - rather annoying indeed. At the moment I open two designers as a workaround, one to edit project scripts and the other one to edit the GUI.

I heard of this happening on Ignition 7.8.0. Is that the version of Ignition you are using?

You are right, I’m using version 7.8.0, but the same did happen to me in the previous version too.