You need to shave or file a tiny amount away from the raised triangular ridge that I have highlighted in yellow. Don't cut the whole piece away, this image is my car AFTER the procedure.
This is very helpful, can you estimate roughly how much needs to be taken off? less than 1mm? or did you simply just do it based on trial and error, I.E shave off a small section, test, if it still didn't work shave off some more until it worked fine?