That looks like what I got first time and when installed on the drivers door as shown in the picture of the white door I had to slam it to fit. Is that where you fitted it? Also did you go straight along the bottom or follow the groove up the wheel arch?
When I moved it to further from the edge it closed ok but lost most of the benefit. The passenger door closes fine and sounds really good.
I can’t believe I’m making such a meal of the most basic of mods!
Never followed the image ...didn’t seam right...straight across
the rubber I got was quite soft compared to my first attempt