Chrome browser (pre version 126) if displaying IM 14.5 Password Services page /iam/im/<environment>/ui7/index.jsp?task.tag=PasswordServices&SMAUTHREASON=01 may show page with no information like UserID filled, while also preventing user from typing anything in the fields.
Password Services is a task used for self password change for example when admin checked "Password Must Change" for a user.
Server.log may show error as such:
ERROR [ims.tmt.ScreenHandlerBase] (default task-1) Unable to read attribute: %USER_ID% java.lang.NullPointerException
ERROR [ims.tmt.ScreenHandlerBase] (default task-1) Unable to read attribute: %PASSWORD% java.lang.NullPointerException
ERROR [ims.tmt.ScreenHandlerBase] (default task-1) Unable to read attribute: |passwordConfirm| java.lang.NullPointerException
Old Chrome version.
Solution was to upgrade Chrome version to 126 or above or use Edge browser.