Any idea why this is happening?
Ok, so here's what happened
1) hit local.sitefinity4.com (local dns entry)
2) Logged in...oops it was still attached to Beta2
3) Opened IIS, swaped that domain over to the updated RC install
4) The above happens :/
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I guess the problem is caused because the authentication ticket was created for a user from another project. Then when you have pointed the domain to a new site the systems is retrieving the authentication cookie for the previously logged in user. Can you please try clearing the browser cookies and reproduce the behavior without changing the site under this domain?
the Telerik team