I would guess that you are having a static issue. There are a few things you can do to solve that issue. I went the cheap route with scrap wire and a few crimp on rings connectors.
Running an air job eliminates the dust that is probably causing issues. Here in Seattle if I have too much or too little humidity, I was getting issues.
Started with just a wire on the dust collector hose. Mine has a wire for stiffness. I exposed the wire at the dust shoe, crimped on a wire and went to the dust collector zip tying the wire as I went. Connect the wire to the metal housing of the dust collector It helped, but did not solve the issue, so I went with this also.
Good Luck
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