Sorry for delay, but a video should now be available unless I did not link it properly. I can also attach the two raw videos separately if requested.
I will also disclose that I will now be unable to record any new footage of this issue, since now that I reinstalled the game, it will be a few months until the issue is substantially noticeable in my game.
Appears to be fixed as of 1.19.60.
Issue no longer persists in old worlds where the bug occurred, and can no longer be recreated in new worlds.
affects 1.19.51
the block visually warping outside of its current plock when pushed also happens to multiple block entities like furnaces, chests, ect.
moving these blocks with quartz blocks next to them makes this bug easier to see due to the contrast between the color, as shown in the clip I attached
Affects 1.19.0
This has happened to my friend on her 1.18.2 singleplayer world which was on an Apple device. This was about a month ago. She had 3 modpacks enabled on the world, but I do not believe they caused this bug. As of now I haven't been able to reproduce the bug but I think it may be linked to running out of ram or rom since all the textures swapped while she was still playing. I also have 14 pictures my friend of the bug and an additional 1 showing what mods were on the world. I can provide the pictures if they will be any help.
Yes, this appears to still be a problem in 1.21.
Additionally, "Improved Input Response" is enabled, however the progressive slowing of the UI has existed long before this feature was added.