The Bug
You can place paintings inside nether portals, but vines can’t be placed in nether portals while approximately having the same exact size and hitbox.
How to Reproduce
Make a nether portal.
Try to put a painting in the nether portal.
Linked issues
is duplicated by 1
relates to 2
Attachments
Comments 3
@@unknown For your information, the field Environment is reserved for additional informations in case the hardware of third party software are relevant to the issue. You don't need to specify "Minecraft Vanilla".
Explanation for why this happens: Paintings (and also Item Frames and Armor Stands) are technically entities, as opposed to vines, and importantly, portal frames, which are blocks. Two blocks cannot be in the same space, but two or more entities can, and entities can be in the same space as a block.
Can confirm for 1.16.2 Pre-Release 1