Hi @Allison Lehmann,
Thanks for you feedback!
We have done some research on this issue. By default, Configuration Manager will read data about user logon events from the Windows event log and determine who is the primary user. Typically, driver host\umfd-0, umfd-1 are excluded. Therefore, it seems a SCCM bug.
To resolve this problem better, we want to collect the OS version of the client that is experiencing the problem. We will feedback it to the product team and recommend you submit your feedback to the feedback website at the same time. I will be sharing for you If there is any feedback. We are taking the customer experience very seriously and thank you for your time and understanding.
Best regards,
Cherry