Autotune 8 Graphical mode crashes N8 when applying

Autotune 8 crashes Nuendo 8.1 when applying the affect to the clip. It works fine while auditioning. As soon as you apply the work, Nuendo 8.1 freezes. Automatic mode works as expected.
Bill Wolf

Win 7(64) Nuendo 8.1, Wavelab 9.5.2

Latest version of Autotune (8.1.8) seems to have known issues. I rolled back to the previous version and it cured the problems

Autotune 8.0.5 does the same thing. Also the latest Meloldyne software also crashes the N8. The problem appears to be Nuendo.