With the shutter set to 'Relative' at 180deg 24fps,
Set up a ramp lets say 4 > 75 fps in 10 secs.
Test the ramp it works perfect.
Go into the shutter menu and move it out of relative
The shutter will display the relative angle for the first speed in the ramp, Till you roll. . .
Here's the bug-- The camera will no longer do a ramp, instead it will just jump to the final frame rate and begin recording.
Nothing will keep it from doing this until you go back in and turn the shutter back to relative, then turn off ramping and varispeed. Then change the shutter mode and re enter all your ramp data.