First off, I'd like to say that WP-Members is an amazing plugin and after I installed it and checked out its features, I realized that this was everything that I would need and more!
I installed wp-members on my wordpress 3.5.1 installation, but can't get the registration or login to work:
I used the shortcode to create the registration area and configured the settings in the admin area, but upon attempting to register it just posts-back to the same page, doing nothing.
First I disabled all plugins and re-activated wp-members only. When that didn't work, I disabled it, changed to twenty-twelve theme, and enabled it, but still nothing. I then uninstalled it and re-installed it, same result. After that I uninstalled it, renamed the folder, downloaded/activated the 2.8.4 BETA version, but still nothing.
I checked the source code of the rendered page and saw that the form action has the same slug as the calling page (/sign-in/), is that correct? No other plugins are enabled, messing with headers to affect the shortcode's functions, so I'm a little lost. Not sure what else to try. Any help is appreciated, thanks!