[f1f]

OK, switching back to the default theme allows me to change user roles. If I then switch back to my current theme a user who I’ve changed to a moderator can still moderate posts.

So I guess we’ve identified a couple of things:

1. My custom theme is broken at the point where user profiles are being edited

2. It also seems the WordPress integration is broken

Any further pointers you can give me on how to correct these would be great, thanks for all your help so far.