b-badass

Thanks Dan C, anon2, and Lagarto. Yes, I'm using Mac App Store ver. 1.8.3 and now 1.8.4, full retail version . Not sure about the Metal Hardware Accelerator vs OpenGL discrepancy but clearly anon2 has shown that this is the issue. In the meantime, thanks again Lagarto, for the Triangular custom First and Second Axis angle workaround. Running OSX Catalina 10.15.6.

Thanks, GarryP. I was going to address your question but then Lagarto nailed it exactly.
 
THANK YOU, Legarto! That's precisely what we are trying to accomplish. I would suggest this is what should be delivered automatically when one selects Grid type > Horizontal triangular. (Maybe there could also be a Horizontal rhombus setting as well, to accomplish what the Horizontal triangular setting is currently delivering.)
 
Anyway, thanks again, Legarto!