Why can't I view some people's kik profile picture on my iPhone 4?

I don't pay for my internet, so I try to use any available free Wi-Fi. I was logged into my school's Wi-Fi which limits what I can access on my phone. I added new contacts to my kik using my school's Wi-Fi, so it doesn't load their kik picture. My android didn't load kik profile pics either when I added new people, but it always loaded later on when I'm on an all access Wi-Fi. But my iPhone 4 still won't let me load their pictures at all even when I'm on an all access Wi-Fi. I've tried removing them from my contacts, deleting the conversation, and messaging them again, but it still won't let me view their profile picture. I can't see the picture they uploaded for their profile kik pic, just the normal display kik picture which is either a gray silhouette of a man or woman. How do I view their profile pictures without resetting my kik messenger?

Your phone sometimes have to be activated