Yep, it appears to be a bug. I experienced the same exact issue. This wasn't a problem with previous upgrades. You can work around the issue. Just add checks for @userid+.kix on the netlogon share, if not exist, run kix32.exe \\mydomain.org\netlogon\kixtart.kix. Can't tell you what a pain this was to figure out. What threww me was once you are logged in, the script will run normally after launching it. It just flat would not run correctly as part on the logon process witthout specifying the full path to the kixtart.kix. User.kix would work fine.