Same Freezes Problem on my both Virus Ti2 Polar Keyboard and Ti2 Rack.
My friend also has the same problem.
The virus just gets stuck in the middle of the music making and even in demo song mode.
No matter if the patch is complex or not.
Virus Support says they never heard of such a problem. The member above "Lsixtysix" who would have to buy a new virus because of that I am sorry. My two synths went well for the first couple of years, after which they get both the freeze problem.
Is probably the technical status of TI2. i just know too many people who have the problem. unfortunately everything is swept under the carpet here.
Here is a hardware problem, probably DSP's defective caused by firmware update, but who wants to hear that.
Just buy a new virus boy, that's the solution ..