Blocks attempted to be placed in a spawn-protection zone are not visibly readded to player's inventory. You can get them back by clicking on the slot.

We are unable to diagnose your issue due to the lack of proper debug information. Please review the guidelines before reporting issues.
In case of a game crash, please also attach the crash log from [minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder].

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Duplicate of MC-99075

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