I think you’ll need help from Roon’s @support team with this, so moved your topic into the #support.
The team Roon need a bit more detail to help you get this resolved. Would you mind filling out the support template below? You can copy and paste it in your reply, thanks!
Roon Core Machine
Include your operating system and machine info (Model, CPU, RAM).
Networking Gear & Setup Details
Your networking gear (model of routers/switches/etc), connection types (Wifi/Ethernet), and any firewalls, antivirus, or VPN software.
Connected Audio Devices
Specify what devices you’re using and their connection types, like USB/HDMI/Chromecast, etc.
Number of Tracks in Library
Tell us how large your music library is, eg. “30,000 tracks”.
Description of Issue
Tell us about the problem you’re having in as much detail as possible. Screenshots are always appreciated!
Meanwhile i solved it by setting—library----clean up library
This process deleted some thousand files
Additional setting changed from:
Background audio analyse-speed – set to throttled – from fast 7 cpu
On demand audio analyse-speed – set to throttled – from fast
@Roman_Petru, I recommend you start a new support thread with the description of your problem and the information @Carl listed as needed to assist in diagnosing your issue.