Forum bug: Login fails with "The submitted form was invalid"

[half a cat]

Forum login was broken yesterday for at least several hours. Login produced the error "The submitted form was invalid. Try submitting again.", reproducibly, on 3 different browsers. Today, login worked normally.

I ask that the forum maintainers look into the bug. Naturally I can't post while the problem is happening, so I'm posting about it now in case the underlying cause is still there.

[danbopes]

I did notice today that I had to relog in. I've been logged in for months with no issue visiting several times a week. Today, I was logged out.

[atomizer]

can confirm, got logged out and couldn't log back in until now

[Rseding91]

The forums have been under attack. What you're seeing are the side effects of attempts to mitigate it.

[mmmPI]

It appears that we can't see the "active topics" without being logged ever since unfortunatly.

[half a cat]

I see, I appreciate the explanation.