Adding a custom usertitle appears to be fine at my end.

Liam and I have just tested our accounts, and they appear to be working fine and the positioning of our avatars/layout of the forum does not change after creating it (see screenshot below):
http://d.pr/i/xZLM

And I have just used some crafty admin abilities to change your custom usertitle, auerolin, and it appears to be working fine on my screen too:
http://d.pr/i/dLOy

Can I therefore suggest that both of you empty the cache of your chosen internet browsers? I understand multiple internet browsers were used in the above case to check if it was a problem with a single internet browser, but changes are frequent on this website and things may not appear incorrectly if you're still working with something pre-update. :p