I used the generator to create a new music disc. The disc is successfully pulled from the inventory but does not appear inside the jukebox and plays no audio.

Sorry y'all this is really late but I fixed it 😭 It wasn't an issue with the mod, but with the generator.

Does not work for me either :( The same symptoms, the added disc items exists and everything, and upon interaction with jukebox, item is consumed (won't be consumed in creative mode, as expected), but nothing happens beyond - no text or music, and cannot retrieve the disc (treated as if nothing is inside the jukebox) Tested it with a minimized version of my instance to test and does not work either, the mod list goes as follows: -quilt loader 0.23.1 -quilted fabric API (qfapi-7.5.0_qsl-6.1.2_fapi-0.91.0_mc-1.20.1) ---also tested with fabric-api-0.89.0+1.20.1 -disco-2.0.8 -addon pack created with the website including 1 disc I haven't tested with fabric loader however Included is this mentioned test addon pack just in case: lalala-test-1.zip

Was the music file added in .ogg format?

In my case it was in the .ogg format.

yep, it is .ogg, single mono channel as advised in the page

1.20.1 btw

Does not work for me either :(
The same symptoms, the added disc items exists and everything, and upon interaction with jukebox, item is consumed (won't be consumed in creative mode, as expected), but nothing happens beyond - no text or music, and cannot retrieve the disc (treated as if nothing is inside the jukebox)
Tested it with a minimized version of my instance to test and does not work either, the mod list goes as follows:
-quilt loader 0.23.1
-quilted fabric API (qfapi-7.5.0_qsl-6.1.2_fapi-0.91.0_mc-1.20.1)
---also tested with fabric-api-0.89.0+1.20.1
-disco-2.0.8
-addon pack created with the website including 1 disc
I haven't tested with fabric loader however
Included is this mentioned test addon pack just in case:
lalala-test-1.zip