Last Updated: November 10, 2015
This could be related to the UserPreferences.xml file being corrupted. The problem may be an empty language setting, a missing localization language entry, or some other corruption of this file. Try uninstalling and re-installing BrightAuthor.
C:\Users\username\AppData\Local\BrightSign\BrightAuthor\<current BA version>
Exception in ReplaceMediaFiles_Executed
Fail: System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.