>What if I took that hot snubber and inserted it somewhere on the bus wires, perhaps near one that is cooler?
You replaced the resistor with a higher power than the others, correct? Naturally it will run cooler! A resistor is meant to dissipate energy based on Ohm's law.
Do not move the snubber! Go to a higher power resistor if need be so it runs cooler. You have a trouble spot and the snubber is doing it's intended job!