Overlapping Data Frames Not Transparent on Export

Discussion created by discoduck on May 21, 2010
Latest reply on Feb 5, 2016 by jacob.aman
I have several overlapping data frames in a layout; the foreground frames are all clipped to a shape.

Yet when I "export map" the result always shows these foreground frame's extents as white boxes - even if their background is made transparent (hollow) or "none" - obscuring large areas of the frame behind all of them.

What gives?