hi i have found quite an easy fix to this problem as i have been having the same problem myself.

i personally launch wow from bnet client on eu realm bloodhoof

if i log on with oqueue enabled game freezes after 2 seconds and only way out is alt + f4 as wow.exe is apparently not responding

if i log on and disable OQ through addon panel on character select screen then login and enable OQ thro adon control panel all works fine without a problem

is this a problem with swatter picking up an lua error from OQ which is maybe too long i dont know but is so far the only workaround i have found that works

so in hindsight it only crashes if i enter world with it enabled already and not if i enter world then enable.

hope this helps out some of you guys and please reply if this has worked for you. may help the staff get this bug sorted if they know it works maybe they can add something to script.