Knowledge Check Review Going in Circles

I am not going around in circles anymore - it's just the Next button that's giving me grief now. I've tried so many different things but I can't seem to figure out where the hang up is in getting the state of the Next button back to normal. It stays disabled through the two allowable attempts, which is what I want, but when the user gets to the Review Results page, the Next button remains disabled. I've tried setting triggers on the layer buttons as well as using custom variables but I'm still stuck. 😞 Currently, I have the Try Again layer with a custom variable trigger set to true when the timeline starts on that layer (also tried the variable thing when the button was clicked). Then after the second failed attempt they get the Incorrect layer, where I added a trigger to change the Next button to normal if the value of the Try Again layer was true...spoiler - this didn't work.

I did however, get the Submit issue fixed, so thanks for that!  Slides attached if anyone can make sense of my slide triggers.