Uff, i don’t think you can stop it from executing. You could only do this if you put an EDITABLE bool and a branch in front of everything
and setting it to false, but since you can’t open if, you have a problem.
You should really look into “Source Control” to prevent this for the future. Then you could just go back to the BP version that worked.
Now you could have run into a problem where you need to remake the Blueprint.
But you can still wait. Maybe someone knows how to workaround this for now. But like i said. Get yourself SOURCE CONTROL and you
don’t need to fear things like this again.