It never crashes for me, but I find the texture pack rather useless nonetheless, so I only put it on at times where I can't bother to differentiate between the disks from their names. I'd be too lazy so I put on the pack to actually see what the wands are from their textures, without looking at their names.
I know **many** people that crash when downloading it... (or when uninstalling it after leaving the lobby.)
But yeah, you can play without the texture pack, not a big of a deal; better than just crashing a lot. Good luck playing next time o/
Edit: I remember, a few months ago, the community games, about 12 people. We were playing lucky islands and we were all teleported to, I think tower defence. Golden times, everyone crashed except me, Potato and someone else. xd I lagged for an entire minute tho