I have a strange issue login issue for super-admins. The site is up and running and all other users can login as normal but it hangs when ever a super-admin logins in. I have manually cleared the cache but to no avail . I am running expression engine 2.4.0
Is this a new issue? By chance, are you running NSM Addon Updater and any of P&T's add-ons? We had a similar-sounding issue with a number of our installs when P&T moved over to devot-ee -- SuperAdmins would be the only ones affected assuming they are the only ones you are letting see the NSM Addon Updater info. We disabled NSM Addon Updater and everything went back to normal.