I’ve just updated a site to 2.5.1 from 2.5.0. All went well up until the point where I tried to access the CP, and just get shown the “ExpressionEngine Installation and Update Wizard” screen.
If I click the “Click here to begin!” button, I get the normal CP logon screen, and the CP appears to function correctly after logging in. When I logout, however, I’m immediately shown the Update Wizard screen again.
Why does it keep re-appearing? Yes, I have deleted my installation folder from /system/.