i have a very simple script 1
TR.PULSE A
P.N 0
CV 1 N P.NEXT
TR.TIME A 1
and a pattern of 5 notes in P0
it skips steps, and sometimes starts step 3 or 4.
The A led blinks accordingly to the steady incoming clock (maths or trigger riot) but instead of quickly flashing, the pulse length (at least on the led) is always changing.