i want to export all playlists and subscribtiones from invidious to piped but it doesnt work.

in invidious i click -Export Invidious data as JSON-

then i go to my acc in piped.video and i click -Import from JSON/CSV-

then piped popup says -The file doesn't contain valid playlists!-

how do i import then? there are no other formats to export from invidious than json and OPML, and piped only accepts JSON and CSV... i tried to see if there's community for invidious or piped on lemmy but i only found abandoned piped page and no invidious page.