Steps on how to recreate
/give @s lime_shulker_box 1 10
Repeating command block always active
/effect @e[type=player,hasitem={item=lime_shulker_box,data=10}] jump_boost 1 0 true
Drop the lime shulker box you've received from the give command and get a normal lime shulker box from the creative menu, you will still receive the effect despite you not having a lime shulker box with the data of 10.
Thank you for your report!
We're tracking this issue in MCPE-151920, so this ticket is being resolved and linked as a duplicate.
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