In the 1.21.10 update (current build as of making the post), Wolf made kills no longer drop the "on-player-kill" items like spider eyes if their owner is currently offline, which i found out about after over 4h of afk for Wither Skulls in my afk W.Skeleton Farm (by Shulkercraft) and getting exacly 0 skulls.
That's annoying for couple of reasons, mainly due to the fact that it still used to work like 2 updates ago (not sure exacly when has the change occured as i don't offten come here) and the dogs for the farm on our realm were supplied by a friend, who's on 2 week vacation, and i had no idea the AFK portion of the farm was completly broken untill after my AFK session and i really needed the skulls.
Note that this isn't said anywhere, on the .gg wiki wolf page, mob drop page, wither skeleton page, change logs for all of the above and i even checked the fandom wiki, still nothing. It only says "when killed by the player or a tamed wolf" it doesn't state that the owner needs to be online for the wolf interaction to work, just that it has to be tamed.
What's even wierder is that the enemies still drop expirience orbs, which is also usually only a "on-player-kill" drop. Like srsly, which one is supposed to be the intended interaction, they drop or don't drop opk's when owner is offline? Currently items do not and exp does.
This vid was recorded with my alt on a backup copy of the world. Here is a link to full unedited recording, if anyone wants it.
EDIT: Added a report on a bug tracker, MC-304590.
by Eternal663