Hi, for the past month the car has started shifted abnormally, but it is perfectly smooth. I have checked for codes with nothing registered. I also changed the transmission oil. When shifting the car will shift normally, but always drop 300 or 400 rpms at each shift, as an example when it shifts from 2nd to 3rd it will hit 2300 rpm and drop down to 1800 rpm and stay there for a few seconds as the car accelerates. Hope I described it properly. Has anyone experienced something like this. Oh, checked the drained fluid, didnt smell burnt and no debris. TIA.