Can't change main job written under my avatar

Details:
The problem is that I can't change the current main job, displaced under my avatar on the forum. At the moment it says BLU99 but I'd like to change it to MNK99.

Steps:
I can't see any option that lets me change it, I tried to go into "My Settings" > "Edit character", but even if there are different main jobs nothing changes under my avatar.

Date & Time:
Jul. 24, 2018 13:09 GMT+1

Location:
Profile & settings

Operating System:
Windows 7

Browser:
Mozilla Firefox

Never mind... It seems that It changed just now. I'm not sure how though, maybe it needed time to update or something. The only thing I did is check the "Edit Character" section to see if today the information was updated.