I recently updated Jellyfin (after not updating it for several versions) and I am unable to login. I can get to the login page, but get invalid username or password. It looks like there were some changes that were made, and if I can edit the system.xml file and change the <IsStartupWizardCompleted>true</IsStartupWizardCompleted> to false I can create a new username. I tried to edit this, but it says I don't have permission.
Has anyone had this problem and know how to get this working again?