There is a bug some people are seeing where Part origins are showing as sketch points in models (Parts and Assemblies). It’s similar to the issue a few years ago when the same thing would happen in drawing views, and the only way to make it stop was to hide sketches in the Drawing.
A Ctrl+Q will make them go away, but only until the next time the model is active on your screen. I reported it to my VAR, and was told that it’s a known issue.
The main reason I’m posting this is to pass along the fix they gave me, in case it’s happening to anyone else. If the origins are set to Hide it won’t happen.