Big problems with audio warp!

I used cubase 4 and recently upgrade with cubase 6.

With this one, i’ve got big problems with free warp. When i quatise audio, all is right, but when i fix it with MPEX algorythms, all is crazy!!!

If i do the same things with cubase 4, i’vent got any problem.

Some know an issue about this problem?

Thank’s


David-Paul