Airspeed

Hi, I'm using an Ender 3 V2. I need to 3d print flat objects with cutout alphanumerics and the occasional 1mm hole. Once or twice, the print was excellent, but then the printer ignored ALL of the cutouts and printed flat discs. I uninstalled the CURA that came with Ender, and installed from the Ultimaker site. I am getting some cutouts, but they are smudgy. The raised features look OK, but the indentations do not. The cutouts are in the 2x2mm to 3x3mm range, and holes 1x1mm. My single decent print was in the wrong colour, and when I have tried black, which seems fine for everything else, the results are useless. Picture attached. Using 0.4 nozzle, 0.12 layers. I have 0.2 nozzles available. Thanks for reading, regards, Mike