Drafting issue

Thanks for the report and especially for attaching the file, Scott — it made all the difference. I chased this one hard and it turned out to be two separate bugs, both fixed now.

The stray circles you couldn't delete were projected edges from the solid, but stored with the wrong side of their circle — a small corner round could get recorded as the big way around, which draws as a near-full circle sitting on top of your text. They were locked because the sketch believed the solid really had those edges. On top of that, the geometry engine could turn parts of rounded shapes into tiny straight facets when extruding, which is where some of the smaller artifacts came from.

Both are fixed at the root in the next update (v2.4.1). No need to rebuild anything on your end — when you open your file after updating, the model re-evaluates and the projection cleans itself up automatically. The circles will be gone, and anything you sketch on a face from now on will project true arcs only.

Thanks again for the file — reports with the actual project attached get fixed a lot faster.