Blueprint Editor goes grey

Instead of showing me all the blueprint editor stuff like so it’s just entirely greyed out and no idea how to fix it without recreating the BP from the C++ class.

I checked that initially but when I get the grey screen also the window tools don’t show properly and the only fix I’ve currently found is to rebuild the BP which isn’t a good solution it works the first time I create the BP class but after closing it and opening it a 2nd time it just turns grey and shows this in the window screen:

Found a fix thanks to /u/DerSchmutz on reddit
“I assume it is an data only (i.e. empty, with no functions) Blueprint, which by default should show the class defaults window… if you, for whatever reason, maybe accidentally, closed the Class Defaults tab instead of the Blueprint, the next time you open it, it will appear as you described… Go to Window menu and tick Class Defaults option… this should bring back the view you are used to (if empty BP, you will not see the Event Graph and such, before clicking the “Open Full Blueprint” link at top of class defaults tab)”