MyBB Community Forums

Try this. In admin/inc/functions.php find:

$query2 = $db->simple_select("forumpermissions", "canviewthreads,candlattachments,canratethreads,caneditposts,candeleteposts,candeletethreads,caneditattachments,canvotepolls,cansearch", "fid='{$fid}' AND gid='{$usergroup['gid']}'", array('limit' => 1));
$existing_permissions = $db->fetch_array($query2);

add after

if(!$existing_permissions)
{
	$query2 = $db->simple_select("usergroups", "canviewthreads,candlattachments,canratethreads,caneditposts,candeleteposts,candeletethreads,caneditattachments,canvotepolls,cansearch", "gid='{$usergroup['gid']}'", array('limit' => 1));
	$existing_permissions = $db->fetch_array($query2);
}

Yep, that seems to work fine

Thank you for your bug report.

This bug has been fixed in our internal code repository. Please note that the problem will not be fixed here until these forums are updated.

With regards,
MyBB Group

Thanks Ryan