Think the Clockwork package is in need of an update to support dyn 2.x 
Tried with a bunch of other nodes… i might stand corrected
(My own package “Canary” works, though I have not yet released it 
For now the python script below should help you
lst = IN[0]
ind = IN[1]
rep = IN[2]
for i,x in zip(ind,rep):
lst[i]=x
OUT = lst