I tow a 2018 Wrangler Sahara Unlimited JL with the Magnitude SV34... so basically the same setup. I have not had any issues like that.
Have you checked your tires on the Magnitude to make sure no issues there?
I added mudflaps to my SV34 and I found the stock short plastic ones from Thor were loose and flopping around because they stripped the sheet metal screws used to mount them.... as they usually do... from having their screw guns on max torque. Might want to check that one of the mudflaps wasn't rubbing a tire.
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