UIVol and UIArray are not sync'd

[pkarasev3]

UIVol and UIArray are not sync'd necessarily, leads to bizarre effects when trying to switch between 2d/3d or uk at a point

range_UIVol = self.UIVol.GetScalarRange()
range_UIArr = [self.UIarray.min(),self.UIarray.max()]

print the ranges:

''''
Accumulate User Input! [252, 189, 73]Axial (Red)
modified by user, kslice bot is running
min,max of UIVol and UIArr = (-1.0, 0.0); [-6.0, 0.0], sign(uk)= -1
''''