One toon not mounting when master mounts

[MiRai]

I'm not aware of an auto-mount feature of JAMBA and normally you have your mount bound to a key binding. If that key binding is the same on two characters and different on one, then that's the issue.

If you check your key bindings and they do happen to be incorrect on that one character, then make sure you disable your Key Maps before you change it to what it's supposed to be.

[Khatovar]

I'm not aware of an auto-mount feature of JAMBA and normally you have your mount bound to a key binding. If that key binding is the same on two characters and different on one, then that's the issue.

If you check your key bindings and they do happen to be incorrect on that one character, then make sure you disable your Key Maps before you change it to what it's supposed to be.

Yup, Jamba doesn't have any mounting functionality, not by default - that's one place the issue won't be. It could be the mount macro {typos, missing, wrong hotbar}, could be the broadcasting {wrong key, key conflict, not passing}, could be stuck in combat, maybe you didn't get mount training on that toon...