How to Restart the zSpace tracking server?

unity3d show"Runtime Error ! R6025, pure virtual call
then unity editor crashed

Sorry to hear your editor crashed. I have seen that error before, but I can’t recall for sure whether restarting the tracking server was the solution. However, since that’s your question, and I assume you don’t want to restart the computer, the simplest way to restart tracking is through task manager.
image

The tracking server should restart itself, but if not, it’s located here.
C:\Program Files\zSpace\System\bin\x64\zSTrackingService64.exe

These instructions assume you possess a 300/AIO model. Instructions for the laptop model may differ.

zSpace tracking server shut down due to my Unity3d crashed,i fixed up it by reinstalling the Unity.