I've been having a similar issue where the a piglin summoned with the IsImmuneToZombification spawnEvent will not barter, but I can confirm that spawnEvents are in the Windows 10 Bedrock Edition.
Quinn Campbell
I've been having a similar issue where the a piglin summoned with the IsImmuneToZombification spawnEvent will not barter, but I can confirm that spawnEvents are in the Windows 10 Bedrock Edition.