Had the bug happen in 2 different saves.
Whenever a vassal from the targ faction is defeated but not captured they disappear.
When asking the other lords where they are they reply : I don't know where "Jorah" is. When they do get captured they seem to work normal tho.
Both saves were played on Realistic + Static wars.
After disabling static wars another lord got defeated and disappeared.
No cheats were used at any point.
Whenever a vassal from the targ faction is defeated but not captured they disappear.
When asking the other lords where they are they reply : I don't know where "Jorah" is. When they do get captured they seem to work normal tho.
Both saves were played on Realistic + Static wars.
After disabling static wars another lord got defeated and disappeared.
No cheats were used at any point.