https://www.youtube.com/watch?v=pmdiSDYJKZ0

For the Judge, Jury and Executioner combo, you can correctly do the entire combo while locked on.
You can correctly do the entire combo while not locked on
But if you mix it up, it gets buggy. If you unlock to whiff the light, and then lock back on to do the rest of the combo, the last attack won't come out as an unblockable.