Hello! I found the next problem.
Mixpanel doesn't work with IL2CPP build on windows (steam application).
Events aren't visible in Live view for IL2CPP mode.
Mono build works fine, all events are visible.
Engine: Unity 2019.4.17f
Scipting Backend: IL2CPP
Api Level: .Net 4.x
C++ Compiler Conf.: Release
Best answer by katonikView original