After breaking blocks, the blocks remain rendered for a few seconds. This is not the case in 1.21.11 and it appears to be introduced since 26.1-snapshot-7 (I can’t say for sure, but I think I am not able to reproduce with snapshot 6, and definitely can reproduce with snapshot 7). Setting the Chunk Builder to anything else than Threaded seemingly fixes the issue.
Video Seed: -515614913474420693 village at -2050, 50
Environment
Kubuntu 25.10, Linux, Wayland, Nvidia GTX 1080, Intel Core i7-14700KF