The 1.4.1 release contains a bug which most often affects the Subversion source control block, but could affect other parts of the build. It manifests as errors with the message "unexpected end of file" or as truncated output from build tasks.

The team is working to make a fixed 1.4.2 release available in the next days. The fix is also available in nightly builds beginning with 1.4.1.3797.