EDIT: I think it has been fixed - I downloaded connector 1.8.0 and it worked as expected so that's great!
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I also experienced this just now. Proxies were enabled on the Program monitor. But not ticked in the export window, which means it should use the original media without having to remember to un-toggle the proxies button, as per normal H.264 export from Premiere.
My version is from a few months back, has this bug been fixed since?
Windows 10 Pro
Premiere 14.9.0
Voukoder 8
Connector 1.7.0