Creating custom page with panels gives 404 error

I dont think this issue is related with the one you posted link of.
I can create new panel pages with path that do not include named placeholders.The problem only arises when i use named placeholders for the panel page path like www.example.com/taxonomy/term/%term/content-type/how-to.
I am not sure whether a page can be created with this type of url but i think it should work.

Heres the expor of panel page

$page = new stdClass;
$page->disabled = FALSE; /* Edit this to true to make a default page disabled initially */
$page->api_version = 1;
$page->name = 'b';
$page->task = 'page';
$page->admin_title = 'f';
$page->admin_description = '';
$page->path = 'taxonomy/term/%term/content-type/how-to';
$page->access = array();
$page->menu = array();
$page->arguments = array(
'term' => array(
'id' => '',
'identifier' => '',
'argument' => '',
'settings' => array(),
),
);
$page->conf = array();
$page->default_handlers = array();
$handler = new stdClass;
$handler->disabled = FALSE; /* Edit this to true to make a default handler disabled initially */
$handler->api_version = 1;
$handler->name = 'page_b_panel_context';
$handler->task = 'page';
$handler->subtask = 'b';
$handler->handler = 'panel_context';
$handler->weight = 0;
$handler->conf = array(
'title' => 'Panel',
'no_blocks' => 0,
'pipeline' => 'standard',
'css_id' => '',
'css' => '',
'contexts' => array(),
'relationships' => array(),
);
$display = new panels_display;
$display->layout = 'flexible:taxonomy';
$display->layout_settings = array();
$display->panel_settings = array(
'style_settings' => array(
'default' => NULL,
'center' => NULL,
'tax_menu' => NULL,
),
);
$display->cache = array();
$display->title = '';
$display->content = array();
$display->panels = array();
$display->hide_title = PANELS_TITLE_FIXED;
$display->title_pane = '0';
$handler->conf['display'] = $display;
$page->default_handlers[$handler->name] = $handler;

I figured the problem.When i disabled the pathauto module that panel page is working.So its because of the pathauto module.
The url which with pathauto module is /category/food/content-type/how-to when accessed as /taxonomy/term/1/content-type/how-to when pathauto module disabled then that panel page works.
Any solutiont to this ?

Yeah i realized that.
I'll manually alias those urls or will give subpath module a try.
Thanks for your help and offcourse for this great module.

Kawal,
www.communityofrobots.com