Well ID is None in DataFrame returned by .overview() but present in GUI

[hakon-molven-4ss]

When running

from fourinsight.api import UserSession
from fourinsight.campaigns import Client
client = Client(UserSession())
overview = client.overview()

overview is a pandas DataFrame with all campaigns I have access to. The DataFrame has a column "Well ID" with all values being None. Inspecting campaigns in the GUI at 4insight.io, however, I find that they often have a value in the Well ID field.