The new mobs do not move and if you hit them they fly into the air. Only the pillagers work.

This is almost related to mine, but a flying villager that can go through the village house wall, and mine's in Minecraft: Java Edition.

Thank you for your report!
We're actually already tracking this issue at MCPE-43464, so we will resolve and link this ticket as a duplicate.

If you would like to add a vote and any extra information to the main ticket it would be appreciated.