I posted this several times on other topics:
"The mirror client is supposed to support the script, It's not the other way around.
We can't make a script that works on 2 engines, if both engines interact in different ways ...
Stop complaining to be if you are running the mirror client, Its in Beta... Instead report everything to the devs, they should be fixing it so the regular client and the mirror client runs the same way."
I'll give it a go on the mirror client later today, maybe I can add something to force it to work.
Will keep you posted!