[MC-310627] Summoning a block-attached entity with a command logs an error

Steps to reproduce:

Execute
```
/summon item_frame
```
❌ The error in the attached image (“Block-attached entity at invalid position: null”) is shown.

This bug was introduced somewhere between 1.20.6 and 1.21.11 and affects all block-attached entities, including item frames, paintings and cushions. The error is logged even when the entity is summoned at a valid position. It does not matter whether the command is executed by a player or a command block.

Attachments

Comments 7

Automation for Jira 2026-08-01T16:24:13Z

Thank you for helping us improve Minecraft! We saved your files:

[media]

[Mod] ManosSef 2026-08-03T12:25:53Z

The error message appears for me when I run the command in the chat as well.

J Z 2026-08-03T13:08:18Z

It now does for me, too. I probably confused the Minecraft instances I had open.

J Z 2026-08-03T13:09:59Z

Updated the description.

S_Mania 2026-09-07T08:00:22Z

The command works for me in both 26.2 and 26.3 Pre-Release 2 with commands enabled, without the same error message. The item frame and painting still spawn from the player or a command block, though they are not attached to a block but float in mid-air about one block above the ground, and then break as items due to not being supported. Cushions and armor stands spawn on the ground as normal, also without the error message.

I used the same command as in the description: /summon item_frame, so it might be incorrect or missing some parts.

J Z 2026-09-07T08:07:56Z

I still get the error when executing the command, so I don’t know what happened in your case.

S_Mania 2026-09-08T05:50:58Z

Sorry, disregard my previous comment. I just realised you meant it’s happening in the latest.log file and not an in-game error. It’s also appearing in latest.log for me on 26.2 and 26.3 Pre-Release 2.