Hey, guys
I had freezing problems with my HX Effects for 2 months now, and after trying everything someone have ever suggested on the web, I think I have finally found the cause for the freezing (at least in my case scenario). I am using the HX Effects with an Roland EV5 Expression Pedal, and after I removed it from the chain, and I deleted all the assignments for Expression pedal in the HX Effects , the freezing problem was gone (almost 3 weeks now), and I haven't had any issues since than! So I guess I have to convert the Roland exp. pedal to mono, or buy the original Mission line6 Exp. pedal, so that I can use one!
I hope I have helped someone out there......
Cheers