Unhandled exception: Broadcasting Notify.....

:face_with_spiral_eyes: Why?
Open existing scene. Render (F9)

This is what happens. (See image.)
Cancelling just sends max into a slow never-ending crash.
Odd, but it will allow me to save the file, and exit max normally.
I open the file again, and this time it renders no problem.

Do you have any plugins like multiscatter?

Best regards,
Vlado