before pulling door panel apart, test drop with top down using the little red clip (simulates top up). This will quickly/easily eliminate any physical hang up due to top guides, etc. From there, see if behavior is same regardless of handle (inside or out). If same, doubtful issue is either handle. Somewhere in the DIY section is a step by step diagnostic guide... do multi-word search and you should be able to find.
Good luck
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