I recently acquired the TP4, and only just tried it with my Z2 (with firmware 51). I saw there's another similar thread, but this one is different.
With TP3, DVS works perfectly, calibrating DVS MK2 records correctly on Channels A and B. However, when using TP4, it can't calibrate Channel B. The calibration box appears full of white dots, or sometimes just a single dot in the center, indicating no calibration. When it's full of dots, a message pops up saying to check the status of your records or stylus.
I close TP4, open TP3, and it works and calibrates perfectly in TP3, but it's impossible in TP4.
I have Gemini PDT-6000 turntables and an Ortofon Digital Track Mk1.
Any ideas?