Hello Benjamin,
There was an issue with translating the SWORD resources to visible text. The filter to enable Greek accents was not enabled. This has now been fixed on the Bibledit Cloud demo site, see this:
Nestle GNT 1904
Οὕτως γὰρ ἠγάπησεν ὁ Θεὸς τὸν κόσμον, ὥστε τὸν Υἱὸν τὸν μονογενῆ ἔδωκεν, ἵνα πᾶς ὁ πιστεύων εἰς αὐτὸν μὴ ἀπόληται ἀλλ’ ἔχῃ ζωὴν αἰώνιον.
Note that the fix is in Bibledit Cloud only because that is the only Bibledit version that fetches and translates SWORD resources.
Question: Do you use your own self-hosted version of Bibledit Cloud? If not, you would use the public demo, which has been fixed, and it should work from now on your end. Note on the Bibledit client to clear the particular cache for this resource to get this fixed.