If a perspective distortion is applied as a Live Filter to a group of objects, a white border is created in the bleed area around the exported PDF. After applying the perspective distortion, there appear also artifacts around the displayed page in Publisher.
If only a single object is selected (in this case the green plane), all is fine. Likewise, if the perspective distortion is applied to the group of objects not as a Live Filter, everything is fine.
The artifact error is visible in the file Live_Filter_Result.afpub and the white frame in the bleed area can be seen when a PDF is exported (note the red border around the edge of the page).
The error can be easily duplicated when opening the file Live_Filter_Test.afpub and applying a Perspective Distortion as a Live Filter.
Live_Filter_Result.afpub
Live_Filter_Test.afpub