I searched on the correct term 'world selection' and nothing returned. If you expect people not to duplicate then can you please review how bugs are logged.
I had completely forgotten how broken this was; I've just began revisiting the resource pack I started working on two years ago in hopes of now being able to take advantage of transparency properly but, alas, this remains unresolved. So incredibly frustrating.
I searched on the correct term 'world selection' and nothing returned. If you expect people not to duplicate then can you please review how bugs are logged.