Simply put, emitted objects are not included in the Sketchy Replay.
Because it's tricky business, normally all objects store animation data in their attributes, but because the emitted objects are only temporary the data doesn't exist once they are deleted, so you would need to store data elsewhere, and then keep track of howmany copies are at any time, and which copy gets the right position data,...
Bottom line is it would take a complete overhaul of the current SketchyReplay, this may be a future feature but for now it's not in the works.
