June 2020
I don't seem to able to go either after the 3rd June patch, I cannot remember if you had to go to options or something to activate it, so I can get the pop up message to join them at work. Detectives is the one I checked still don't know if the other active careers still work properly.
June 2020
@noel1976 I've split your post into its own thread, since the other thread is quite old.
Please do test with a different career, and test in a different save as well. If you use mods, please test without them.