Magma spawner on bastion don't generate

nether bastion remnants are suposed to have a magma cube spawner. The chain block supporting the spawner is there but no the spawner. Also it seems like only one type of bastion spawns in bedrock nether from my experience, or I am unlucky and couldn't find another type. Tried 5 diferent worlds, located 2 bastions in each and only found the version 1 type.