Ordinate dimensioning

Hello, Can someone please tell me what this feature is and how to get rid of it?  I've done ordinate dimensions for a few years and all of a sudden this feature is showing up.  I was able to remove it from one drawing.  I tried the same steps to remove this in another drawing, but I can't get rid of it now.  What would cause this to even show up in the first place.  Again, I've done ordinate dimensioning for a few years and never saw it.  Thanks