Transmission - No data found! use "Set Location" error

Changing share rights to fit an addon is NOT a solution! The old BitTorrent client could use whatever share rights you had, so Transmission needs to do so too.
Besides if I change share rights to nobody/nogroup, then I will NOT be able to administer my media share. Again, NOT a solution.

I had success when I creating the main folder and giving those nobody/nogroup rights for a few torrents, which works, but is a poor fix. For torrents that are files only, touch'ing the files and applying the same rights also works, even after they finish. I had to re-add the torrents which were giving errors, as "Verify data" does absolutely nothing once I got the "Set Location" error.
While this is essentially the same as JarnoGs fix, this only affects a few folders it is a "better" fix for me at the moment - even when work is required for each torrent added.