So on Display Fusion 9.0 beta 3 when I use a scripted function like "Prompt to Select an Audio Device" (either mine or Keiths version the problem occurs) where the list menu is blank and becomes frozen. I can stop it from running by going to the Display Fusion icon and right click to stop the function. If I test the function it runs fine; I have a problem running it so far via the key combination method. I've attached screen shots down below.

It's a known bug. Waiting for the next beta. And I think it would be better to rename the topic to a more appropriate title, such as "UserInputList menu blank and frozen", because it has nothing to do with triggers.