The Bug
When on a server at high coordinates, explosions from e.g. creepers or tnt will create ghost blocks.
This cannot be reproduced in singleplayer.
I know this bug exists at least since 1.16.5 and is especially annoying when you make some survival minigame that requires random spawnpoints and features creepers.
Steps to Reproduce
1. Start a local server
2. Connect to it and op yourself
3. Run /tp 20000000 ~ 20000000
4. Enter creative mode to avoid killing yourself
5. Run /summon tnt above some dirt, repeat in a few locations
Observed Behavior
Ghost blocks appear towards the positive coordinates (either positive x or positive z, depending on your exact location)
Expected Behavior
The server should update the client correctly.
The coordinates aren't required to be too high.
The bug reproduces at 3876 108 6280 on my server. The obsidian wall seems to be destroyed by tnt explosion, but it was still there on the server side.
See the following picture.
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