ESC brings up Pause Menu, but cannot get it to 'dismiss' it.

That’s handled in my “Resume Button” code. (That function gets referenced here by the “Resume Button Function” node hanging off of the ‘True’ pin in the branch.)

But the good news is that I GOT IT TO WORK!

My problem was the “Set Input Mode UI Only”. Once I removed that, everything works the way it’s supposed to now. Here’s my revised BP. (And I did away with my own bool since I noticed in yours that there was a built-in “Is Game Paused” function.

I’ll be doing a little more optimization and cleaning (Like creating a variable for the Pause Menu widget so I only have to call the Create Pause Menu Widget once), but other than that, this works just fine now.