Hi Brian, thanks for raising this.
We raise that particular notice “We could not detect or override the PHP configuration option max_execution_time…” when the ini_get() PHP function returns false meaning it is hidden from our Plugin and from WordPress.
You’d be seeing the alternate error “We could not override the PHP configuration option…” if we could detect the max_execution_time value but not increase it.
Regarding why the export is failing at 30 seconds, this sounds like the timeout override you’ve added in php5.ini has not been applied to Apache or your web hosting software, can you try adjusting the max_execution_time option via php.ini, .htaccess or per your hosting provider’s suggestion.
