In which case that's good feedback to give to management.
Unless they have very good reasons and offer an alternative ("I'm on deadline so can't talk now, but after this sprint I'll have time.") those individuals are actively sabotaging the team and should be dealt with accordingly.
Often management knows all about it and does nothing for one reason or another.
I had two cases of having a toxic coworker and only being able to get them fired after leaving myself. (Step 1 is “oh shit, we lost an important team member”, Step 2 is “aha! we haven’t been able to replace that team member in six months because of the behavior of the toxic employee”). Next thing I see the person is on LinkedIn looking for a new job.
