All Izotope plugs working on my system win8/64bit

I think it was hardware.

Different hard drive for the O/S,  same Sonar project (with 4x track instances of Alloy)... no crash. 

Tried half a dozen times and all fine.

I am also an alloy 2 user and as far as I know, alloy 2 never crashses my Sonar X2 64 bit. I had installed my 32 bit vst and 64 bit vst on separate folder to avoid conflict and any uses of bitbridge if possible. I had also set my Sonar to run on run as adminitrator to avoid having trouble with some vst.