Compatibility with WordPress 4.3?

Please note the “Compatible Up To” tag at https://www.ads-software.com/plugins/theme-my-login/.

Any time estimate of the possible resolution?

Please, try the 6.4 beta 1.

That beta triggers an error on activation

Well, what is the error?

sorry thought i pasted it

Warning: require_once(/home/content/45/8144845/html/wp-content/plugins/theme-my-login/includes/class-theme-my-login-common.php) [function.require-once]: failed to open stream: No such file or directory in /home/content/45/8144845/html/wp-content/plugins/theme-my-login-6.4-beta1/theme-my-login.php on line 18

changing file name to “theme-my-login” then re-zipping & uploading fixed this tho

Yes, the plugin directory currenty has to be named “theme-my-login”.