So, I really didnt know the power of TOPs, and apparently it thinks I have a SETI complex in my office room.
Was playing with the sample file on Wedging, switched out Mantra for Redshift, set up output options, Shift+V, and boom, 10,000 .lock files, as it tried to render all frames simultaneously against a GPU render engine.
I was like, SideFX has actually unleashed the Kraken - everyone says it, but no one actually DOES it! LOL
This new PDG world is so powerful - I'm amazed at what can be done in it.
P.S. - yes, I found the loop node and set it to iterate upstream items.