I'm having the same issue. I've tried saving several presets with a 1/8th note subdivision at 60bpm. However, when the recently saved preset is recalled the tempo is not 60bpm and when the tempo is tapped in again it is the default 1/4 note subdivision. The preset only saves the position of the time/subdiv knob and whatever time (msec.) delay that is.
Also, is this the correct place to report possible DL4 MkII bugs, or should I submit a service ticket?