William sent me a reply which appears to be the same as in the other forum link. Looks like VWS by Ambient may have to get involved.
VWS was written by Ambient Weather, and we don't have any direct control over the program itself. It looks like a change that we made to our system is conflicting with the original program, but the change was necessary for our site and services.
Ideally, VWS needs an update. But it's an older program and that might not be possible for Ambient to make that change.
There isn't a clear solution right now, but we'll see if there's anything that we can do.
Regards,
William
Wunderground Support