You cannot unassign a traveller role from a character

[AdmiralGT]

If you've joined a session and set a character to be a traveller, you can't unassign the role from them. Obviously in the normal use case you know they're a traveller but if you misclick assigning a role to someone and select a traveller then they're just as that until you leave the session and gain the ability to remove characters.

[bra1n]

Good catch, I'll have to hide traveler roles from role selection when in spectator mode.

[bra1n]

Fixed with 505593d