VST 3rd party audio plugin not rendering on output

My VST Deverb audio plugin works fine when played in the timeline, but when exporting it isn't there. I've cached the audio for each clip in Fairlight. I've applied the plugin to the timeline, and to the individual clips.

Resolve Studio 17
iMac 2013

Did you render the Project via the Deliver page as a Single Clip or Individual Clips?

Individual Clips uses the source audio, whereas Single Clip includes processing.

viewtopic.php?f=21&t=125567