Primary clutch help needed

My inside sheave is rubbing the inside plastic cover. It almost looks like there should be a washer behind it. Everything works fine. I did have the wet clutch apart in the off season for a new one way bearing, but the shaft does not wobble or have play in out or sis to side. In addition my 1 mm shim looks like it’s down to .5mm. The back side of the inner sheave is recessed.