I have noticed that this error seems to only affect this specific height level, between 255 and around 257. I'm working on Y 259 (after some VERY frustrating workarounds), and it's no longer affecting me. I got one of my friends to record me while the glitch occured as well, and it also affected him. I will upload soon.
Unfortunately, I do not have the world to upload and my friend can't get it to me at this time.
I will try to get him online to witness the glitch as well. It's been typically only me on this structure at that height. This doesn't happen on lower levels for me or anyone else.
I've added a few more example videos. Hope this helps pinpoint the issue.
Hi,
Not sure about the datapacks thing, my friend hosts the world on an external server called Shockbyte. However, I have been able to replicate this error on local worlds on both PC and on MCPE on Android, so the server wouldn't be the issue. I go up to approximately 255 on the Y axis, make a wool platform, and when I step out to place blocks further out, I notice the air supply meter flash up and disappear. As in my attached .mp4, when I eat, my character's location changes slightly (enough to clip me through the platform). In a similar area, I had also died while standing still with the game telling me I "fell from a high place". I will see if I can capture these things happening and attach the videos when possible.
I should also add, I have updated to 1.19.73 since lodging this ticket, and it's still doing it.