Player sometimes appears as "Operator" even with Cheats off

Hello, I am reporting a UI/permission display issue in Minecraft Bedrock Edition.
Game version: 26.13
Device: Honor X7b (Android)
Problem:
Player sometimes appears as “Operator” in UI, but cheats are OFF.
Details:
Default player permission is always Member.
Cheats are OFF in all worlds.
No experiments enabled.
Commands do NOT work.
The OP label appears visually only (not functional)

Result:
Permission display does not match actual gameplay permissions.