I recently bought a Mahlkonig Vario grinder and was very happy with it. But I went to clean it and now the macro setting changed form two to three and the coffee tastes bitter as compared to what it was before. I am doing

everything else the same in all other aspects of making the espresso. Also the naked portafilter is now spurting whereas I didn't have that problem before at all. It has to be the grinder. Anyone else had this problem after

removing the upper burr carrier for cleaning?