I have for a while now been trying unsuccessfully to login as another user on my development site, so I can be sure they see what I want them to and check my permissions.
I am running version from 11/2/2014 (2.5.7).
After clearing cache and cookies I can get in as superuser/admin but not as anyone with my 'manager' role.
When I try it gets into a redirect loop.
Anyone have any ideas, or similar experience.
Tried debugging this but to no avail.
If you require more information, let me know what you need and I will get it for you.
Here is a screenshot of the permissions page for manager role.