Membership 2 Pro is not adding registered users to proper list in Mailchimp.

When you select a list for a specific Membership plan, and when users sign up in that membership, they are not added in that assigned mailchimp list.

Steps:

# Enable Mailchimp Addon.

# Go to Dashboard > Membership 2 > Memberships > Edit (any) > Select a Mailchimp List

# Now logout. Then signup for that membership you just edited.

# Check that list in Mailchimp.com . The user is not added to that assigned list.