In Vault 81 after completing its main mission you can pick up the mission from Tina to get her brother off of Jet. However; when I go to hand in the quest I have the option to have Tina as a companion via successful persuasion.

Here lies the bug, Tina suddenly spurts out "well that made a lot of sense" and goes back to working but doesn't actually become my companion. Neither does she move to a settlement.

The mission "Dependency" also remains incomplete.

Whilst we are on Vault 81... I can't trade caps for fertilizer or tools with Calvin. We need to be able to properly communicate and interact with those key characters after our first talk with them.

Hope we see a fix soon.

If this has been brought up already apologies and if anyone has a work around let us know. Thanks.