I have this issue where we have a script that updates user profiles if there has been changes to their profile which as being changed in a custom list. this script runs every night.
however recently i noticed. all profiles have gone back to the old profiles and no matter how much change i make, they always go back to the old one. tried manually editing the profile from the UPA and running the script to update UP not still nothing.
is this due to the AD sync happening every 1 am? But what is odd is that in the people picker of sharepoint site. when i add people in sharepoint groups, people picker displays that correct profile (I undertsant that people picker is retrieved from AD) but when i click add, the added user has the wrong profile (profile in UPA).
this means that the profiles in AD are most likely correct (i have no access to the AD so i wouldn't know and AD team is not being helpful) and that the sync must sync from AD to SharePoint UPA but what's happening is that the information is being reverted to the old info and i am not sure what i am already missing.