Hi Mike,
I haven't digested the linked thread yet, but I always DO print by pressing the "Print" Button at the lower right of the screen rather than "Printer" and then Print from within it.
My printing workflow in LR is always as follows and usually it is AOK.
On the left hand side of the Print Screen
1. Do Page Setup, often selecting a custom paper size I've previously established.
2. Above that, choose my User Template that I've developed for that paper size.
3. In Print Settings, choose my Paper Pre-Set
Move to right side of the Print Screen
4. In the tall vertical section, make any settings I want/need such as Image Settings, Layout (including margins and cell size and #, resolution, profile, media type, etc
5. Hit the large "Print" button at the bottom. I DON'T click on "Printer" because it appears to have all of the same info that I set under item 3 above. It seems strange that to avoid this intermittent problem that I'd have to visit the "Printer" settings twice.
But I'll read the thread.
Brad