Solution - ArcFM  - Adding Basemap to Stored Display Changes Coordinate System for Data Frame

Version 4

    Behavior

     

    Adding a basemap to a stored display may change the current coordinate system of the data frame to WGS 1984 Web Mercator (auxiliary sphere).

    This behavior occurs when you use the 'Add Basemap' command.

    WGS 1984 Web Mercator.jpg

     

    Cause

     

    This issue may be related to one of the following Esri bugs, fixed in ArcGIS 10.1 SP1:
    NIM081408 and NIM081490 - Adding a basemap changes the coordinate system to WGS 1984 Web Mercator (auxiliary sphere).

     

    Workaround

     

    Change the current coordinate system back to the correct spatial reference.

    See the following Esri technical article for information on how to update the coordinate system in Data Frame Properties.
    http://support.esri.com/en/knowledgebase/techarticles/detail/40396