I really think the issue lies mostly with ARA, and I’m not sure what to do about it. I’ve posted threads (ARA2 changing volume levels of events in Cubase/Nuendo) that have not gone anywhere. It hasn’t been only with Nuendo that I’ve had issues, but there’s not really a workaround for plugins like SpectraLayers that currently (as far as I can tell) only can be used with ARA.