Somehow in the last days the behavior of creating a customer changed. Earlier the username was automatically the email-address after creating a new customer. However now by creating the customer it’s username is set to some art of a hash, e.g. “qm:2d7b973f-…”.
As an example there is the case with old customers where everything is created with there email-addresses, e.g. Username: email@example.com, Emailaddress: firstname.lastname@example.org, Name: John Smith. So I could get users to organizations by there email-addresses (usernames) but now with this change I cannnot do this. I only get the error with “Usernames not found”, which is correct because the new customers do not have email-addresses as usernames.
Unfortunately I could not found any information about any changes or new releases.