I use the latest Alloy template that bases on CMS 11.12.0. I can log in as an Administrator without any problems. However, if I create new users - they cannot log in. There are no error messages both on UI and in logs.
The issue was reproduced on different computers.
Some of the things want to make sure.
Is user Active?
Have you assigned appropriate roles to that user (that have content access in CMS, https://world.episerver.com/documentation/developer-guides/CMS/security/Virtual-roles/ )?.
We have assigned the user to the Group but it was not mapped to the Role