So for the last few days I thought I'd been going crazy because somehow despite it never being an issue before I suddenly started "getting my password wrong" on my first attempt to login every day. The site didn't say I'd made a mistake I just assumed I did because the login screen would reload. First I blamed myself, then I blamed the keyboards at the library I use, and finally today I clicked the 'show password' button on Firefox's "remember this password?" prompt and, lo and behold, it was the completely correct password. So basically, here I am blaming the site.
A minor issue for sure but I thought it worth posting for entertainment value at least.
You're not crazy. You are logging in twice -one into the main site, then once into beta. To be honest, I've never gotten around to having the two sites talk to each other so you do not have to deal with that.