I am also experiencing the same problem, I tried update my contact and attached a photo with my contact information, then I tried swiping down the notification, but the notification would not budge.
Checked some sites, some sites suggested that we press on the notification bar for a few seconds and then scroll even that did not work.
Only resolution to this problem is restarting the phone and that seems to work pretty fine
.
Any updates on this would be welcome.
Cheers!!!!