It should be resolved quickly. I don’t know if anyone has this bug, but I'm sure it’s definitely a bug in the code.
MC-280423
Block textures flicker randomly
Resolved
Fixed
3
(Unassigned)
Community Consensus
Platform G
Very Important
Rendering
25w09b
25w10a
Retrieved
The reported behavior has already been mentioned in the description of MC-280383. bq. the environment keeps on glitching too. […] it’s too fast to capture them on pictures, but it’s basically black textures replacing certain structures Nevertheless, I believe that “user interfaces glitching visually” and “black blocks flickering in the world” may be sufficiently distinct to warrant tracking them in separate tickets.