I’ve just checked it locally on newest (1.2.2) version and it seems to be working.
Please go to Customer Management grid and have a look what Accounts are assigned to newly created Customers. What are these values?
When I create first the account and later the customer, it will not work
I looked in the database field: the field ‘dataChannel_id’ was emty, when I fill this with ‘1’ (=Commerce channel)
then it works. So the problem is when yiu create a new customer which you link to a existing account, it will not update the ‘dataChannel_id’ field (empty)
But when you create a new customer, with automatic creation of a account, then the field ‘dataChannel_id’ will be udated