Sorry to hear about your Visualize woes. I've never heard of Visualize removing the SVPJ from a machine, but it would be worth more digging.
What version of Visualize are you using? Can you consistently reproduce this specific crash? If yes, please follow the forum post I recently created on how to properly capture all the crash information for the Visualize R&D team:
I'll try to reproduce the crash. The model crashed visualize about 8-10 times that day. Two of the times, my .svpj disappeared, so it wasn't consistent.