Steps to reproduce
1) Add a dropdown field
2) Add a item in the colecction with your own value
3) Display with the table layout

Directus Version : 8.6.1
OS System: Ubuntu 18.04
Thanks @r0b78 — could you also share your interface options (setup) if it's not private?
Was a empty dropdown, don't seems to happend if you have at least one value in the dropdown,
also if you have other empty dropdown the bug happends anyways.
Gotcha. Probably a harmless error, but we'll get it cleaned up!
The dropdown supposed to display the user added value for the next times ? I think in the previous version that's the behaviour.
Because in this version the value doesn't display when the user add the new item.