The bug
Hoppers facing the worldborder can push items in containers outside the worldborder.
Linked issues
Attachments
Comments
Can confirm in 21w05b.
Can confirm in 21w06a.
Can confirm in 1.16.5 and 21w08b.
Can confirm in 1.17.1.

Can confirm in 21w37a.

Can confirm in 21w40a.

Can confirm in 21w41a.

Can confirm in 24w46a. Also would like to request ownership to maintain the report.
Can confirm in 20w51a.