(01-29-2020, 05:19 PM)tyFlow Wrote: ">100" is dependent on your time step. If it's set to frame, the particles will be deleted at frame 101. If it's set to 1/2 frame, they'll be deleted at frame 100.5, etc.
Multi-pass rendering iterates over frame ticks, of which there are typically 160-200 per frame, depending on your framerate. So just because the timeline has reached frame 100.00384 doesn't mean the deletion event has also been reached, thus the particle will still be alive.
This manifests itself no matter what you set the time step to, in my example scene it was 1/32 with the timing on the property test set to Continous. If you change the timing on the property test to frame it still looks the same. It kind of feels that the property test operates on a full frame bases no matter what you set the time step to.