Upon further troubleshooting, I have determined that the problem lies in a file I am trying to update a folder in the %programdata% (aka Common AppData) directory. My installer gave USERS full control rights to this folder and all subdirs and files within it but running wyBuild update with a change in this file creates the error. If I do not change this file in my folder in the %programdata% directory, the update works via a limited user acct.
Can't figure out what the problem is. Any help?