[MC-170473] Jumping and falling between Redstone repeater and a block doesn't deal fall damage.

Description

When you jump off of a platform that is high above the redstone repeater, landing onto a redstone repeater that has a solid block two blocks above it will result in the fall damage being negated.

How to reproduce:

Place a Redstone repeater
Two blocks above it, place any other solid block like stone
Build a platform high above the redstone repeater, climb onto it
Switch to survival mode
Make sure the gamerule "fallDamage" is set to "true"
Jump off of the platform (don't walk off, press space first) and land between the Redstone repeater and the block you placed above it

Some more info
I have tested this on Minecraft version 1.8.9, but the bug did not reproduce there. I have not tested if this bug works with other blocks other than Redstone repeater, this bug I discovered by accident while I was falling next to a wall. I have also made a recording showing in detail how to reproduce this bug which was recorded in a newly created world. Since the maximum file size for attaching files is 10mb, and the recording file size is bigger than 10mb, I have uploaded the video on YouTube (https://youtu.be/y1aF7T_a1rQ).

Edit:

After trying to reproduce the bug once more, I have noticed that for whatever reason, this bug does not reproduce every single time. Perhaps there is something else that is triggering this bug.

Linked issues

relates to 1

MC-169902 Player takes no fall damage when landing next to a chest Resolved

Comments 6

Avoma 2021-01-19T09:52:27Z

The video that you have provided is unavailable. Please attach a new recording of this issue to the report.

DLDave 2021-01-19T13:10:18Z

I apologize about that. The video got deleted when I removed the channel that the video was uploaded to. I have recorded new footage, uploaded it, and updated the link. I have also updated the bug description and the steps to reproduce the bug to make it easier for everyone to reproduce the bug themselves.

user-f2760 2021-01-19T13:13:12Z

This is the same as MC-171969, so it's a regression; might want to change the relates to link to that report instead (the chest report was resolved as a duplicate of this report),

Avoma 2021-08-18T09:42:55Z

I've attempted to reproduce this issue multiple times in 1.17.1 and have been unsuccessful. I tried this from different heights and still couldn't recreate it.

MMK21 2021-09-06T11:31:13Z

I am also struggling to reproduce this. Were you using a non-vanilla client when experiencing this issue?

DLDave 2021-09-06T12:15:01Z

I was using a vanilla client at the time. So there were no mods or anything like that. A few minutes ago, I attempted to reproduce the bug once again, but couldn't do it.