Solved
sketcher constraints show as white circles
Creo 9 sketcher constraints show as whits circles. This does not add to the functionality.

Creo 9 sketcher constraints show as whits circles. This does not add to the functionality.

Oops, I had the "line color" in "system colors, entity display, Constraint Display Settings" set to white somehow.
It seems incredibly unlikely that anyone could "accidentally" change that setting but it's fine now.
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