Downloaded routes not available -- app crashes [Android]

Hi -- thank you for this app. The routing is really useful!

I've been playing with the app, and I just figured out how to download areas. I was zoomed in to my city, and this made it not clear at all how to download an area. Maybe a little helpful blurb could appear? I have downloaded my local area now.

But the main issue is, both before and after I downloaded the local area, I could not/cannot access routes if I download them to my phone. It says they're downloaded successfully, and it shows the little phone icon next to those, but if I then tap on the route, it takes me back to the "Route folders" screen, which becomes blank (my folder of routes disappears from it). Then, if I back out and then go back into my routes folder and tap on the downloaded route again, the app crashes.