chanter 4th mantra bug

Today I ran Adma with my legion and there's another chanter beside me in the group. Usually in retail aion, 2 chanters can run up to 4 mantras. However, this server we couldn't. We had to use the same mantra to keep it from swapping around between those 4 mantras. Could you look into this please?
PS. sorry I don't have pictures to back this up because there's gonna be too many screenshots for it

Thanks!

If you can provide one would be very help. Anyway i'll look into this to see what's happening.

Thank you for the report.