more specifically, watch folder rendering with multi-machines is pointless because skipping a frame seeming to take as long as rendering the frame, so one machine can never catch up to the other. why does skipping a frame take some long? i mean it's been in the software for like 10 years. is this not considered important?
Are you trying to render an image sequence or a video? I have only had success with image sequences.
These two features are not intended to be used together.
Render Multiple Frames Simultaneously multiprocessing is intended to turn a single computer into a self-contained render farm of sorts. Multi-machine rendering is intended to use multiple computers in a render farm. Attempting to use these two items together is mixing two different organizational schemes for managing the rendering of frames.