Artefacts from my project are all assemblies within a directory. Artefacts archived as:

...in my project build configuration.

1. Click a recent build number
2. Click "Build Artefacts"
3. Click all files in zip
4. GET: "Oops!" error page, stack trace attached to this ticket
5. EXPECTED: Download artefacts as a zip file

This error is also raised using the "view" option, even with a single file: