How to Scrub through longer samples with Groove?

    Oct 22 2021 | 7:32 pm
    With samples up to 4 or 5 seconds in length, I've been able to use a Flonum attached to the groove inlet to change the sample start time, thereby scrubbing through the sound while it's playing.
    I've since loaded a 20 second sample, though, and varying the Flonum value just produces silence.
    Am I trying to do something impossible with long samples? Thanks.