Thanks for taking the time to write in, and welcome to the community! Unfortunately, you’ve left out a fair amount of useful information that would help us better understand your setup and issue.
How is your local library connected to your Roon Server machine? Can you set up a direct connection from your server to your router, as well as your machine hosting your library, and see if the same issues persist?
If you reboot your Roon Server after adding your files, do you see them properly afterwards?
I’d also reboot your router in the meantime, and see if your issues persist. Thank you!
Please note that Roon staff will be out of the office on December 24th-26th & January 1st in observance of the Christmas & New Years holiday period. Additionally, we will have limited staff available on December 27 & 30/31st . Thank you for your understanding.