Can’t eject external drive. AMP Library Agent takes 90% of CPU

Hi,

I’m on clean installed Big Sur 11.4. I have three LaCie Rugged HDDs by 4 TB each. I store music and movies on them. Once I connect a drive to my MBP Retina 2015, open the folder with movies, try to eject the drive, get this: “The disk is in use”.

From Terminal I found out that AMP Library Agent somehow uses the drive, Activity Monitor shows this process using 96% of CPU.

WTF? It’s clean install, any drive behaves like this if it stores multiple movies. Now I have to manually kill the process or log out to safely eject the drive.

I don’t use library sharing, not a single app runs at the time, nothing uses the external drive but this agent.

Does anybody have the same issue?