I have a Mule single cone and it should play perfectly. Something must have got bent in shipping. Did you unscrew the top and look at the biscuit, the 3 cones and the connector pieces? The guitar is heavy and it could’ve been squeezed. The good thing is, that the parts are simple to come by and it’s hopefully not the neck itself. I’d get it checked out quickly so if it’s badly damaged you can get a refund.
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