We have been developing a multi platform app for a few months. Previously we followed these steps:
Login to Provisioning Portal with iPhone in question.
Select Provisioning Profile you want to install on iPhone.
Click Download Link
This would take you to the "VPN & Device Management" area in Settings with the Profile Listed, click on it to install.
Now there is no profile listed. I have double checked the UDID's of each device to make sure they match the target device. I have removed the old profiles from the provisioning portal. Generated new profiles.
Any help would be greatly appreciated.