Minecraft reddit post:
The video is boring and repetitive and long to ensure any relevant info would be included.

This glitch honestly makes me feel like I’m going insane. Exact same pulse shortener works only sometimes depending on where it’s built. The “now in Vanilla” section is included to show that it’s not Optifine or shaders somehow causing this.
I did use the /summon: item command a bunch of times to get a bunch of dropped eggs on a hopper for something I was testing earlier in that area where the pulse shorterner doesn’t work. Could that have something to do with it?

Link to world download

Chapters:
0:00 – The Glitch
2:59 – With Coordinates
3:55 – In Vanilla