Virtual Instrument Volume Slide's to Zero

I’ve encountered an issue I can’t workaround in Cubase Elements 10.5 on a Mac PowerBook with MacOS 10.14.6

When playing back a virtual instrument (Studio Drummer loaded via Kontakt) the volume turns down to zero from within the Kontakt instrument panel as soon as I stop the playback. I then need to manually adjust the volume’s knob within that same panel but will then turn to zero after stopping the playback.
Is there something I’m missing? How can the problem be solved?

Thank you all


Is there any MIDI CC7 in the Instrument track?