Hello
I have a Kodiak 201QB that had the same issue, and many more. It's due to the manufacture QC and not caring, mine was appalling almost went thru it. I took the panel off at the bottom and added about 6 more wooden supports, kind of difficult but well worth it. If I had to do again I think I would make a mold and foam it. It would have to be 2 part high density foam ., not the spray can type but 2 part roofing foam that dries in seconds.. Good luck
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