Database corruption after upgrade, restore attempts fail (ref#C617VQ)

Reply to your direct mail: Another restore attempt:

May 15th 19:30 (UTC+2)

ROCK 2.1 build 271
Roon 2.66 build 1658

Stopping Roon Server using Rock Web UI

Connect to Rock share, renaming \ROON\Data\RoonServer to RoonServer_1

Starting Roon Server using Rock Web UI

I connect to the new Roon Server using the Windows App
I press continue when asked for added the Music folder
No thanks for music services
Finish to Audio devices
My local music now gets added anyway. Just to be sure I wait until its finished, takes just a few minutes for my 2020 ripped CDs

I go to settings, backups, Find Backups
I connect to my local SMB share on a QNAP
I select the Folder
The List of Backups is correctly listed
I have Backups every 3 days from 2026 Feb 16 should be 30 total
I select 2026 May 9, Version 2.64 (build 1646) production

Restore is fast, takes just around 2 minutes

The App says to press Relaunch, I click

After a few seconds the Roon Core is listed, I connect

19:53 (UTC+2): The Server comes up with “Hi, Alexander” and the moving logo (screenshot)

at this point, nothing happens…
Its 20:24 (UTC+2). 30+ Minutes have passed.
I close and reopen the Windows app. I comes up with “library loading issue”. (screenshot)

I do a clean shutdown of Rock.

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[Moderator edit: side discussion moved to it’s own topic in Feedback ]

Concerning your KB article: