Dishes still dirty after full cycle. problem developed gradually over 2 week period

Several hours to diagnose problem: Removed all the plastic water distribution tubes to top rack and found no blockages. removed lower water jets, drain screens using star driver on 6 screws. still could find now blockages. decided problem had to be in pump mounted below unit so completely disconnected unit and removed from under counter. Upon removing lower plate below door I discovered a plastic pouch containing an excellent trouble shooting guide with complete dis-assembly instructions and parts breakout diagrams with P/N listings! First thing I discovered from this was that the chopper assembly was hiding under a plastic cover just under the filter screen I had already removed. The trick was to press down on the right side of the plate to get it to pop up and reveal the chopper. The whole chopper assembly slides out without tools. I found the strainer plate behind the chopper blade totally plugged as the blade had broken off the plastic drive shaft because the retaining knob on the end of the shaft had broken off. I was able to drill and tap the shaft and install a SS machine screw with washer to reassemble the chopper blade on the shaft. Not expecting this "Joe Maggee" repair to last more than a few cycles I went online with the P/N and googled PartSelect. Placed the order and chose std delivery over 2day or next day since I expected the repair to last for the week. I put everything back together and the first load came out perfect! This was Sunday afternoon. Tuesday the part arrived at my doorstep! 15 minutes and the new part was in. My "Joe Maggee" repair is now in the junk drawer awaiting the next pistachio shell that gets run through the washer.