· Music won’t play or issues with my library
· Local files won't import or appear
· All songs in Storage folder mysteriously disappeared. Wondering if this a known issue.
· Unifi UCG Ultra. 2 Unifi switches US 8/16 POE No VPN.
Hi @Ned_Lenny,
Thank you for reaching out. Can you please share some screenshot of the issue? Where was the media library storage located when it was previously working? Has anything changed since it was last working?
External HD attached to NUC running ROCK. Storage folder empty, no data at all. Not one file. Over about 3500 albums in folder. Disconnected HD from NUC and viewed on another computer. Same findings. It’s like they spontaneously deleted. This was before most recent update. Woke this morning to this finding. Restoring from a backup. Will buy external SSD as upgrade. Just curious if anyone else experienced this. Btw, all other folders are available in Data folder.
Update: re uploaded music library yesterday. Roon never recognized files. Woke up this morning to empty Storage folder. Gremlins deleting my music?
Hi @Ned_Lenny
After reviewing your logs, we can see GPT partition table errors on your Toshiba drive that are logged every time ROCK boots:
The physical files disappeared from the drive even when viewed on a separate computer — this rules out a Roon database issue. Something physically erased or corrupted the filesystem.
Most likely cause: exFAT filesystem corruption following an unclean unmount.
exFAT has no journaling or transaction log. If the NUC was hard-restarted (e.g., ROCK auto-applied an update around May 26, as the user mentions) while the filesystem was still dirty/flushed, the FAT allocation tables and directory entries could be zeroed out. The drive would appear completely empty even though raw data blocks may still exist on the platters.
The GPT corruption makes this worse: with a corrupted backup partition table, certain filesystem recovery tools may misidentify the drive, and the exFAT driver may behave unpredictably on edge cases.
GPT: Primary header thinks Alt. header is not at the end of the disk.
GPT: Alternate GPT header not at the end of the disk.
GPT: Use GNU Parted to correct GPT errors.
This means the drive’s partition table is corrupted, which can cause filesystem instability and may be related to your files disappearing. Please try the following steps to check and reformat the drive on your Mac — this will also fix the GPT corruption.
Step 1 — Check SMART status
Step 2 — Run First Aid
With the top-level drive selected, click First Aid → Run. This checks both the partition table and the filesystem for errors. Note any errors it reports.
Step 3 — Reformat as exFAT
This will erase all data on the drive. Make sure your music is safely restored on ROCK first, or backed up elsewhere.
Music (or whatever you prefer)ExFATGUID Partition MapUsing GUID Partition Map is important — it will create a fresh, correct partition table and eliminate the GPT errors we see in your logs.
After reformatting, reconnect the drive to your ROCK NUC, wait for it to mount, then copy your music files back to it.
Please let us know the SMART status result from Step 1 — if it shows Failing, the drive itself is the problem and should be replaced regardless of reformatting.
Hi @Ned_Lenny,
We’ve not seen a post in some time and this thread will shortly auto-close. Our diagnostics servers how that your ROCK might have been active recently. Are you still having issues with this storage location?
Hello Vadim,
The drive was verified. I went through this process a day or so after the problem. The drive is running well.
I am curious if you are currently seeing GPT partition table errors, or the last date you have seen these errors.
I appreciate your comprehensive assessment and communication of this problem. You have inspired me to put the NUC and external drive on a battery backup.
Thank you for your time and expertise. I enjoy Roon for hours everyday. I appreciate you and everyone at Roon for a wonderful product.
Best,
Ned Lenny
Hi Connor,
See my note below. Thanks to the team!