I ran SK through steam, and created my first account there (let's call this account A). Then registered another browser account (call this B). Since I paid on account A, those two are separated. Before the "login as guest" update, after I ran SK from steam, I can then choose "login with steam account", or I can just unclick that option, and login with my web account. But now, the login screen only allows "login as guest", or just login with the web account. I've tried logging in with my steam ID and password, it just gives a "no such user" error. And now I can't freaking login on my steam account through steam SK. How to fix this?
Restarting Steam usually makes this problem go away.