Hi Greg,
Simulating here but set the accell to minimum, vel high and can clearly see the same as you mention.
But....Jogging with the Mach screen works fine,
Then switch to MachMe and the FIRST jog attempt is fine for the accell but that first decell and all subsequent jogs ignore the ramp.
Then switch BACK to Mach and the first attempt ignores the ramp during accel but is sort of reset/repaired for the decell of that first jog, then all is well.
Can repeat this over and over.
RC