Shape Icon Border Red with no indication on Shape

Weird Problem: I have reached a point in constructing a new design where ANY change I make (base change, flip, etc) causes the Shape Icon Border to turn all red, but with no red spot anywhere on the design portion of the shape icon.

We are sorry about the late response - this problem should be fixed now. Let us know if the problem persists

I have the same problem. It happened when i changed the 72 Adenin to a Guanin and even when i revert it, it won’t go away.