Cubase 11 Export +Groups/Sends Not Working

Anybody else have this problem?

I’m testing out Cubase 11 and trying out the EFFECTS options during Export.
“Disabled” and “Inserts and Strip” are working as expected, but when I select “+Groups/Sends” to include Reverb the resulting export is EMPTY. Same problem when selecting “+Master…”

Thanks.

Cubase 11
Mac OSX 10.14.6