Max6 freezes on Maverick due to ezdac~

Hi all, I wonder whether you have encountered a max6 freezing issue on a Maverick machine.

Basically, if I turn the ezdac~ on and off for a few times the software will crash completely and have to perform a force quit.

Firstly I suspected it was something wrong with the patch I am working on, then same thing happened on a new patch with nothing but an ezdac~.

Tried on PC and it was fine, but same problem happened on my friend's Macbook pro (Maverick) as well.

I have been using max for years and never had this problem before. So I think there is some issue with the system.

Any one have the same issue before? If so, did you manage to find a solution?

Thanks

Jiajun