Drum Map Not Activating VST Instrument (Kontakt - GGD)


Using Cubase Pro 10.5 - PC w/ Windows 10.

I’m running a Kontakt Instrument track for my drums (GGD Invasion), and I loaded a drum map in Cubase. However, the MIDI signals in the drum map and the MIDI controller aren’t activating the drum sounds (no level response), but when I manually click the drum kit in Kontakt, the drums can be heard just fine (w/ level response). When I went to activate the “Show Drum Sounds In Use By Instrument” option, it’s grayed-out and inactive.

What do you think the issue is? (This is not a riddle - I’m stuck!)