Project for The Web Acclerator

[ALawson1981]

I am looking to setting up project for the web acclerator and I have followed all the steps I can find online. I am having an issue with users. 

I want to be any to select any user in our org as the project sponsor or owner but some users are not pulling through and some are. I am struggling any pattern has anyone come across this?

[#2]

I've had similar issues with a few users. If you haven't, try searching on their email address versus typing in their name.