www programming

at date of this post the file class.wp.w3all-phpbb.php
has been patched to fix with correct query the function that affect the user's profile fields update.

to fix download the single class.wp.w3all-phpbb.php file
and replace on folder:
/wp-content/plugins/wp-w3all-phpbb-integration

(or uninstall plugin and reinstall)

on file class.wp.w3all-phpbb.php
patched hours ago, has been definitively fixed under any aspect (for example to avoid redundant queries when not strictly needed) at date of this post. If already applied the previous post fix, it is working fine and already ok.
This is just a definitive patch for the public static function phpbb_update_profile() that you can also wait to update to on next 1.9.4 release. If you wish patch before, just follow the first post indications and replace the file class.wp.w3all-phpbb.php.