Album Artist Various Artists shows up under letter B ?

Dear Forum,

i have a strange issue with sorting of my Various Artists Compilations in LMS.
For some Reason in Album Artists, my Various Artists shows up under letter B, between "Bazuka" and "Beau Williams". Not under letter V as it used to be.
In All Artists it shows up between "Beach Scorpions" and "Beams and Strikes"
Not a bad issue, but strange. I think there must be a tag involved like Albumartistsort or similar.
I did a clean rescan, but still the same issue.
When entering into Various Artists, it shows all my Compilations, so it is working, not a bad issue, but i dont understand why Various Artists show up under letter "B".
Anyone here, who could help me narrow it down?


Thank you