Strange problem.
Using JSM Premium with Assets.
I have a user, who has permission for JSM as a customer and is in Atlassian Guard, with product access.
However, she has never logged in.
When I try to assign an asset to her (using a custom User field), it can't find her.

I have had this before, and had to sign in as the user to make them appear. But I don't want to have to keep doing this/
Is there any way I can get the User field to include all customers, not just those who have signed in?