Any track that is calling from <a href="https://dl-a-82.fanburst.com/" rel="nofollow">https://dl-a-82.fanburst.com/</a> is timing out. If you check the dev console in your browser it will show an error message with the complete link to the track you are trying to load. Not that this helps for roll20 integration, but I've been able to change the 82 to an 85, paste the link into my browser, and the track will then download to my computer, so I'd say Fanburst is starting to have server/shard issues as they head into the company closing down.