I use node_save to save a new node, but not all the token worked!

Here is my basic info.

a contenty type with serveral cck field. let's name this contenty type fruit.
for this fruit content type, there are two vocabulary attach to it.

the structure of the vocabulary like below :
vocabulary location:
Jiangsu
--Wuxi
--xuzhou

vocabulary type:
top
--sub type 1
--sub type 2

the pathauto patterns for fruit type is "[termpath-raw]/[title-raw].html";
If I use node_save to create new node, the path will only like below:
my-node-title.html
the pattern[termpath-raw] seems not work.

however if edit the node with edit form, and select the "Generate automatic URL alias", it will repair the url to the correct one .

my drupal version is drupal 6.26 and the token version is 6.x-1.18

Thank you.