Since I added the login dropdown, at least one member has run into some difficulty logging in to the site.
It seems if you use any kind of password storing software, that you may not be able to "auto fill" the login form. In the one case I know of (on PC only), the login form literally "drops down" when you mouse over the words "Log In," or the little down arrow next to it:
If you then click in the Username or Password fields, you can type your info and then click the "Log In" button. But if you move your mouse off of the form, or if you click on any kind of "auto complete" icon that might come with your password storing software, then the whole login form goes away, making it impossible to ever enter your information.
If you cannot fill in the login form, just click on the "Log In" button at the bottom of the form. This will take you to the login page. From there, enter your information and check "Remember Me," then click on the "Log In" button on that page. This will log you in to the site, and (fingers crossed), it should then 'remember' your login info for the next time, so that you can auto fill the login dropdown instead of having to go to the login page. (That's my hope, at least, but I haven't personally been able to verify that yet.)
As far as I know, this is only an issue on PCs, because on mobile the login dropdown remains active until you click the "up arrow" to close the login form...
You can also still navigate directly to the login page and thereby skip the above steps: https://www.rpginsanity.com/login/