The Bug:
Attempting to place glowstone into a respawn anchor in spawn protection causes a desync.
Steps to Reproduce:
Start a server and join it.
Give operator permissions to yourself.
Set the world spawn to your current location.
Place down a respawn anchor.
Obtain a block of glowstone.
Switch into survival mode.
Remove your operator permissions.
Give operator permissions to any person other than yourself.
Attempt to place the glowstone into the respawn anchor. (right-click).
→ ❌ Notice how the glowstone disappears from your inventory.Click on the space in your inventory where the glowstone was previously.
→ ❌ Notice how the glowstone is back in your inventory.
Information:
When attempting to place glowstone into a respawn anchor in spawn protection, the action succeeds client-side but fails server-side, causing a desync.
Related issues
Attachments
Comments

Probably duplicates MC-99075
This one does actually duplicate MC-99075 as that refers to any situation in which an item or block was visually removed from the inventory due to an interaction, such as this.