Relays are probably the issue. As said before, they are most likely not waterproof. Wet inside and slowly corroding away, especially if there's power in there to feed electrolysis corrosion.
I once had a flood in my basement and the sump pump outlet was sitting on the floor rather than draining the water away. After everything was fixed, everything was fine, and the pump worked great. But 6 months later, the sump pump failed. Water got into the little micro switches and it took a while for them to corrode away.
I would recommend replacing every relay, if it's easy to get to them. They're typically not too expensive and will get you ahead of a lot of flaky behavior.
Edit: Solid state "relays" should not be affected by the water, not sure if there are any of those in there.
Thanks, looks like a total of 5 relays. I may try to work on it Fri night. Probably try to take apart an clean. If I can’t. See if same part number and do some swapping on relays. Read on the starter. Looks easy to get out. Very comfortable with taking apart. But after reading. Yikes. Have to pull exhaust system an motor mounts. Take loader bracket off. Jack up motor. Ugh. Starter will be last I look at.