Fast charging not working on S23 Ultra

Hi, I have a Samsung S23 Ultra and recently the fast charging is not working anymore. With the same cable that before it worked. Now I plug the charging cable into the phone and for a few seconds it appears that it fast charging, but then it s charging normally.

Has anyone seen this issue before?

Update: Tired a friend's super fast charging and it's the same. Actually it happens the same on his phone. I think it is from a recent software update. So all good😅