Hi Eric, I think it could be corrosion despite what you said about it. My 2014 R3T has 74K miles and a lot of rain. I do not have this issue on mine but, I did have the entire left switch assembly replaced due to corrosion while the bike was still under warranty. Since then, I have opened the assemblies and cleaned them with electrical cleaner and lube with dielectric grease. Each time I find some corrosion on some metal piece. Just clean it off and grease again.