Teammates cannot view diffs on pull requests

We recently transferred a repository to a team account. I then forked that repository, did some work on my fork and created a pull request. Once the pull request is created, I get redirected to the pull requests page on the original repository and am presented with the error: "Something has gone horribly wrong"

I have read access in both directions, and if I am logged in as the user account under which the team was created, I can view the diff and accept the pull request. I just cannot view the pull request on the original repository if I am logged in with my own account, as a team member.

This only seems to be happening with teams...