I'm running IS version 2.2 and now trying to add a building to faction Morocco

I get this error at various times from both editsf and esf editor

Unable to cast object of type 'EsfLibrary.Coordinates3DNode' to type 'EsfLibrary.EsfValueNode`1[System.Tuple`2[System.Single,System.Single]]'.

Sometimes the editor just crashes on open of regions.esf and other times after changing the value in a cloned settlement_and_slots/slot_descriptions

 I was using the original regions.esf file from the install dated 10/24/2009
Any help would be appreciated.