I confirm, this is also 100% reproducible on my side (ROCK + Synology DS115). ROCK can only see files, when SMBv1 is enabled on the Synology. Disable SMBv1, and they’re gone. (But the share is accessible from other Windows systems).
I’ve read that before in this forum, for instance here.
I’m following this topic with great interest, as it is one of the very few annoying things in my setup… Changes in the file system take very long, to show up in the Roon database…
Really don’t know if the inability to mount SMB2/SMB3 shares has anything to do with that.
But I thought I’d share and confirm, just in case…
(By the way, I find restarting Roon from the web interface a much quicker workaround, than forcing a rescan through the normal UI… see pic below. Takes ~5 seconds to complete.)
