Finishing asset detail page testing (NEXUS-8255), I noticed that NuGet assets were being listed and downloaded in the form of "/SONATYPE.TEST/1.0".
If you rename the download to it's proper name (in this case original file was SONATYPE.TEST.1.0.nupkg) or even improper with a nupkg extension (tried test.nupkg) they work. So the data is there, I think maybe just malformed slightly somehow.
However, as far as download goes, I imagine it'd be pretty annoying to NuGet users trying to get their assets this way. Left major because of this.
Asset details are new to Edgy so does not affect older NX3. I did not check NX2 at this time, tho I suspect unaffected.
Test performed with Debug off.