KB311782: Disabling security setting „Session information is included on the URL” in Microstrategy 9.x in Web Administrator disables the possibility to edit attribute form in selector.

SYMPTOM:
When in Web Administrator, in Security section, the setting „Session information is included on the URL” is disabled as per screenshot below, editing the form of attribute in selector is no longer possible.
 

 
 
 
There is no error message visible. However, when User enables the setting the information window as below occurs:
 

 
CAUSE:
This is a known issue in MicroStartegy 9.
 
ACTION:
Issues has been fixed in Strategy 10. Please, upgrade to take an advantage of the fix.