[MC-199874] Player loses sprint unnecessarily

The Bug

If a player climbs an iron bar from a horizontal chain the player looses sprint, even though he hasn't collided anywhere.

Steps to reproduce

Turn off Auto-Jump and set Sprint to Hold for easier reproduction.
Get into a redstone ready world

Run the following exact commands:

/tp @p 0.18 ~ 0 0 0
/fill 0 ~ 5 0 ~ 20 iron_bars
/setblock -1 ~ 5 minecraft:chain[axis=x]

Sprint straight forward without moving the camera
→❌ Notice that you lose the sprint once you climb onto the ironbars

Attachments

MC-199874.mp4

Minecraft 1.21.4 - Singleplayer 2024-12-11 20-16-17.mp4

Minecraft 21w03a - Singleplayer 2021-01-25 18-18-48.mp4

Comments 7

Mateus Pereira Milbradt 2020-09-09T21:18:00Z

Can you provide a screenshot of it with your F3 debug screen enabled.

tryashtar 2021-01-26T01:18:56Z

Can't reproduce (video attached)

srynoob 2021-01-26T12:39:24Z

No, check the image or the command

the chain and the iron bar are not on the same cardinal axis its offset by one block

if required would add a video

Arisa Bot 2021-01-26T12:58:09Z

⚠️ Please do not add Affected Versions to resolved reports.

Have a look at the Resolution and the comments to see why this ticket has been resolved. If you think this ticket has been resolved erroneously you can contact the Mojira staff on Discord or Reddit.

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bugsbugsbugs 2021-03-14T18:12:05Z

I can confirm with the steps provided in the description.

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Relates to MC-2987. If you walk slowly you will see that you first step upwards to the chain and then up to the iron bars so yeah, you should not stop sprinting here.

Jack McKalling 2021-03-18T22:44:32Z

I can reproduce this in 1.16.5 from the exact repro steps too, I do notice however that it doesn't always happen if you turn a bit from the provided camera angles.

Shawn82 2024-12-11T12:40:57Z

Cannot confirm in 1.21.4

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