I will try this with a link, seeing as I can't seem to post directly. Let's start again. Anyone ever got this message? (I will try to attach a pic to the next post because this stupid forum won't let me at the moment). I am in Edit Definition for an extruded feature with a simple rectangular sketch. 3 sides of the rectangle are Use Edge and the 4th is Offset Edge. The references have been lost because of a change to the parent part. I have the option to Update one reference and Replace the other two. It seems straightforward but I can’t close the References dialogue box even though I have updated or replaced the references. If however I delete them so there are no references then I can close the box. Of course then I have go
back to the references box or to the constraints menu to constrain my geometry. This makes “Replace� in the references dialogue box pretty much redundant.