with the cue list active, when you modify the current cue in the 2D, 2 issues happen:
1.
if you modify the intensity, the output stays at the higher level between the Cue List output and 2D scene editing.
This happen even if you mistake to move too much the slider, let's say at full, there is no way to have these intensities back.
Every time I've exit edit mode, go in VC and jump back one cue to refresh the output.
2.
if you prefer to do the correction in the 2D plan because it's faster to select a row of fixtures,
then the intensity widget remember the last used value and you get a jump in the output lighting level.
already reporte here:
viewtopic.php?f=18&t=15934