I am wondering if the update passed the test farm just fine, but when the file was moved to the update distribution system that's when the issue happened. The

I am wondering if the update passed the test farm just fine, but when the file was moved to the update distribution system that's when the issue happened. The file copied as all nulls and there was no validation check that the file posted ok. Compounded by no validation check on the file after downloading by the end system. Compounded by not having a staged roll-out process for updates.