thanks Anssi, unfortunately it's not large or far from origin. I've experienced this on small models and large ones. It's weird, I removed and reinstalled sketchup but it still happens. π’
It only happens occasionaly, and when it happens on a "face" I can sometimes eliminate it by drawing a line accross the face, and then soften it. it's as if the flat plane becomes non-planer and planer (I think thats the term) at the same time somehow. entering the fourth dimension, or twilight zone. π² arrrgggg