I want to create a rule where -- depending on how you set Assignee -- the Team field is automatically updated, but I am running into this error message:
Unknown fields set during edit, they may be unavailable for the project/type. Check your custom field configuration. Fields ignored -
customfield_100001
No fields or field values to edit for issues (could be due to some field values not existing in a given project):
SF-1368
I looked up the Team field in our project settings and it is locked -- is that why I am running into an issue or is it something else?
Here are a few pictures that show how I built the rule:

