Blueprint Graphs Not Diplaying

I am having strange behavior with editor I have been unable to figure out, and have potentially lost most of the framework for my application due to blueprints not displaying graphs to edit or see code (Pure Black Display for Graphs)

What Happened:
I was reworking a lot of code, and I had a class labeled as old code, and after reworking code and new code was working (old events were wither disconnected or no longer called) I deleted the blueprint labeled with old code. The editor did not like what I did, gave me the message suggesting to exit without saving anything. I did, and when project restarted, I could no longer see blueprint graphs for blueprints dealing with my entire subsystem framework, down to even the most basic class which is child of “Object”.

It seemed as though a cast node, attempting to cast o the class blueprint I deleted, was in the main subsystem blueprint. Instead of showing the blueprint with a bad cast node, it seemd to have messed up any blueprint referenced by the main Subsystem at any time (all my seperate manager subsystems)

The weird part:
I do not have a backup that has a copy of the blueprint I delteted. I had an older backup on a seperate external harddrive, copied it to my laptop drive, and I was able to load the projct and it would play, and work, but I still could not open those blueprint graphs and see the code.

I have also tried updating the project to 5.5 from 5.4 and that did not work. I have also reinstalled the engine. I am at a complete loss here. In the original corrupt project, I could find blueprints that would not compile, could not see blueprint code, but compile errors would show the name of the blueprint I deleted stating a cast node.

Why would a backup have the same issue with blueprints not displaying? Even though they compile.

Video Demo

Oddly, dragging the window fixed the problem?..HOWEVER, if I close the blueprint, and double click a function, it will open back up as black screen?? And I have to drag away again

Try closing the tab ( x ), then adding it back by double click it on the graphs section of the My BluePrint panel.

Na, tried that. It will display black. If I drag it out and drop it somewhere else, it will show the graph, then I have to drag it back to where it was and it will show the graph where it was (where it was - meaning - as a tab in the same section it was in before) I had to change sections or frame. Perhaps that action forces a certain type of refresh/redraw.
I am just glad I can see my code now.

It will continue to do this even if I save or save all

Try saving the loadout once it’s displayed.

Oh man, how, in my so many years of using UE, have never considered even saving or loading a layout

Loading the default layout fixed it.

I have been using UE for years and I am just now learning you can save a layout…IDK how I missed this lol

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