I tried to run your attached model but it just runs forever without
any pullers leaving the Pull activity. It looks like nothing is getting
pushed to the list to me. Also the Assign labels activity doesn't look
like your images here.
So based on the images, I'm guessing
you are trying to add the Time label to all the elements of the 'pulled'
array once the puller gets all three boxes?? The errors are probably
because you are saying to assign the label to token.pulled; which works
fine if you only pulled one thing. By having an array in token.pulled,
Assign Labels needs to know which thing like token.pulled[1] or
token.pulled[2]. Specifying the array doesn't work.
You would
need something like a Subflow that says for each member of the array,
create a child token that references a single member of the array, and
assign the label to that array member.