I wish to trade with villagers to gain experience. While i cant gain any experience in-game. We have 3 players in my realm, only one of us (not me) can get experience ball as usual, the other can only hear the sound of gain experience and there's a subtitle at the right-bottom corner, but the experience bar didn't increase, actually.

Our map was constructed in 1.18, and 1.18.1 was updated today for 1.18.1, then the issue comes up.

WIsh for quick reply, thx.