Added blueprint interface events and now project won't open.

I wanted a widget component to hide it’s widget when the player presses interact button. I set up a blueprint interface event to get the input action talking to the widget component. It all worked great until I tried to open the project again.

Now it just hangs at 75% and doesn’t open. As the script was build in blueprint I can’t even edit it in visual studio, nor can I get the editor open to screenshot the blueprints!

Is there anything I can do to save the work I have done? Is this a common problem with blueprint interfaces?

Any advice appreciated.