Looks like rawinput with supermodel bypasses some LB/BB controller hotkeys. Prob due to the way Supermodel closes in rawinput, and the way LB/BB "Close the Active Window" aren't playing with each other. I don't use this feature in LB/BB to be honest.
Supermodel has ESC hard bound to exit the emulator. You may need to find a way to bind a button combo to ESC outside of LB/BB. However, I'm not an expert with the feature as stated above.
@JoeViking245 Is there a way to bind his button combo to ESC within LB/BB? Back to you haha!