I've ran into a problem with my celly paint, one I've not seen before. The paint was mixed well before use and was open yesterday. I mixed two litres with top coat thinners and filtered it into my gun. Only problem was the filter was littered with flakes of what I can assume is paint. I then filtered the actual paint and it's all the way through. I've attached pictures of the filters. Can anyone advise what is wrong? I even sprayed a test piece and it's looks awful.