Suddenly Not Able to Create Boolean Map Variable

In the level blueprint, I had created multiple variables, three were map boolean variables, and about six map integer variables. I had been using these variables for over a week with no problems. This morning, I find that my project is no longer able to be opened. I get the error “The following modules are missing or built with a different engine version…”, but I haven’t updated Unreal Engine 5.5.3 since before I started the project. Even my backup will not work. The work around does not work (deleting certain files in the project folder). I completely uninstalled Unreal and reinstalled 5.5.3 to start a new project with the intention of redoing my work. I can no longer make map boolean variables. I can make map integer variables. When I change the variable to a Boolean variable, the map and set options are greyed out. If I change it to a integer map variable and then just change the integer to a bool variable, the map turns into a single bool variable.

I could easily work around this, but could someone explain why or point me into the direction of an explanation. Thank you in advance.

No one can. It was never a thing.

How certain are you didn’t have this instead: