Villagers when spawned with a spawn egg or with commands do not care about workstations when they are placed or destroyed. They should interact with it and get jobs etc. but none of that happens. They treat it as a normal block.
Linked issues
Comments 4
Actually, this is more MCPE-73804
Does MCPE-73804 describe your issue? Also, you currently have your email address as your username. Please change it here:
https://report.bugs.mojang.com/servicedesk/customer/user/profile
Duplicates MCPE-46034