I needed to release an update to our internal application s few minutes ago and on starting UpdateBuilder, it said there was an update. I updated and proceeded with the release as usual.
This is a simple update with two files, an executable that is CAB compressed, and a report template, which are uploaded to a regular public file share on a Windows server. The update process proceeded as usual and compressed the exe to a CAB, but at the point of transferring the files, which usually takes about five seconds, the progress bar ran instantly to 100%, the status box said "Update uploaded" but an error dialog popped up with "Failure during upload". No files were uploaded.
I rolled back to an earlier UpdateBuilder that I had on a VM (V2.1.2.0) and the update ran to completion. I updated to the latest version again (V2.1.3.0) and got the same error message and failed upload.