Does the latest insider build allow for removeable storage mapping?

[thundr51]

In 8.1 I mapped all of my "library" folders (Documents, music, videos, etc) to my onedrive folders and those were mapped to my SD card. It's currently broken in the retail release on W10 (If I download files using edge, then try to open them using the downloads link in edge I get an error that it can't find the file). Since we're getting close to the next threshold release, just curious if this has been fixed/restored yet.