Sounds like the little tab that centers the switch in the mounting hole is gone.
Might remove the switch and build up a new tab with epoxy and grind to fit or, try using a star locking washer on each side of the dash. One of those things that makes a person scratch their head.
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2019 Unity LTV CB, pushed by a 2013 Honda CRV, BlueOx Baseplate, Aventa Bar & Patriot Brake
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