While on BLU, using /jobhudmode will crash the game.

[Kalila]

Date & Time: 1/16/2019, 7:50PM EST
Frequency: 100%
World name: Excalibur
Character name: Kalila Violette
Retainer name: N/A
NPC name: N/A
Monster name: All
Class/Level: Blue Mage
Party or solo: Both
In-game time: N/A
Area and coordinates: All World
Housing: N/A

Steps:
1. Execute /jobhudmode while on Blue Mage.

Result:
FFXIV crashes due to there not being a Job Gauge for BLU, so no safeguard for a class w/o a gauge was coded in.

[Dynratygus]

Thank you for posting in the Final Fantasy XIV Technical Support Forums.

Kalila, I apologize for the delay in our response to your concern. You mention that the game crashes because there is no job gauge. How does the program crash? Does the game launcher just close? Or do you get an error message? Please provide a description of the crash and if possible could you also provide an image of the crash as well?

Hope to see you online!