Beat division bug and how to play in 6/8?

for starters, the manual says that the default beat division is 4, but mine lights up 5 as the default. regardless at 5 it matches tempo of other devices. it also only shows up to 11 as an option but still lets me press 12.

then there’s the question of alternate timings. i would assume that if i changed the beat div to 3 that 3 steps now equals a beat but that doesn’t work. changing it to 6 or 7 is a bit closer but is off time. any advice is appreciated?