Stuck in drop down menu with screen reader

Hello Gregory, 

Thanks for reaching out!

I tested a sample drop-down interaction with NVDA active, and I can confirm that I was able to interact with it properly:

Since the behavior appears to be isolated to your project file, would you be willing to share a copy of your project file here or in private by opening a support case so we can take a closer look at what's happening? Please include which version of Storyline 360 and NVDA do you have installed. We'll delete your files when we're done testing!