The game is terminated when the command to hold the item off-hand of pillager is executed.
/replaceitem entity @e[type=pillager] slot.weapon.offhand 0 arrow 1
The game is terminated when executing a command to hold a shield off zombie.
/replaceitem entity @e[type=zombie] slot.weapon.offhand 0 shield 1
It appears as if it floated by putting the head of the Wither skeleton on the head of pillager.
Even if the weapons possessed by pillager, skeleton, stray and drowned are erased, they will attack with arrows and tridents over long distances without attacking them.
Thank you for your report!
We're actually already tracking this issue at MCPE-39589, so we will resolve and link this ticket as a duplicate.
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