Guessing it won’t work until you run the editor localisation tool to gather all the text.
Yet to do that ourselves, so again, unsure.
I know you mentioned not wanting a custom solution, but if your after one, its fairly easy to manually import the .csv at runtime yourself.
We recently updated our game to use Lua based scripts for game logic.
To make it ease for text to appear on the client and support localisation, this is what we did.