Offload Idle Engine won't play at 0RPM parameter

Hi,
I’ve been working on an Engine, and learning as I go. Why won’t the Offload Engine play at 0RPM?
Please see the attached video → Offload Idle Engine won't play at 0RPM, like the Onload Idle Engine does - YouTube

Just make sure at max zoom the instrument is correctly snapped on 0 rpm.

ah! even zoomed all the way in, it looked like it was, but yes, that worked. Thanks again Alci!