I have an atlas index grid that I label with the Boundary Placement option in Maplex.
In ArcGIS 10.2.2 the horizontal label on the bottom of a polygon would label properly (right side up).
However I have noticed that in 10.3.1 the label is now upside down. (See PAGE25 label in the image) My thought is that the Boundary Placement option is now generating labels that always orient their "top" to be along the polygon edge.
I had to have someone who still has 10.2.2 export all of our maps.
I looked around the forums and couldn't find anyone else reporting this.
Has anyone else experienced this? If so is there a setting to get them to orient right-side up?