When using the name selector in a command with the not selector, it incorrectly identifies the entity/player you're trying to not target, and insteads targets only that entity. For example, /kill @a[name=!Steve] only kills Steve.
When using the name selector in a command with the not selector, it incorrectly identifies the entity/player you're trying to not target, and insteads targets only that entity. For example, /kill @a[name=!Steve] only kills Steve.
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However, this issue has been closed as a Duplicate of MCPE-21355.
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