/effect succeeds on immune mobs

Open

Steps to Reproduce:

/summon wither
/effect @e[type=wither] invisibility

Observed Results: The command runs successfully, but the wither is still visible

Expected Results: The command should fail to run like Java Edition.

Linked issues

relates to 1

MCPE-236152 /effect command doesn't fail when target has a stronger effect Open

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Reporter: Wilf233

Assignee: (Unassigned)

Created: 2024-08-22T12:27:50Z

Updated: 2026-02-19T12:36:19Z

ADO: 1345449

Confirmation Status: Confirmed

Platform: Multiple

OS Version: Windows 11

Labels: command, effect, java-parity

Affects Versions: 1.21.50.25 Preview, 1.21.30.24 Preview, 1.21.30.23 Preview, 1.21.21 Hotfix, 1.21.41 Hotfix, 1.21.60.28 Preview, 1.21.70.20 Preview, 1.21.51 Hotfix

Fix Versions:

Retrieved 2026-02-19T13:52:15Z