If you bolt in the electric version regulator does it work correctly? This is a really weird issue as I’ve removed and installed more that a few and I literally slap them in. It’s hard to think anything could be mounted backwards or off to any degree. I don’t know of any adjustments. Does...
Something is definitely off there. Could the regulator be off on the mounting points by chance? Just put this one back in on a drivers door. It’s a dormant replacement