qtp sometimes does not application link

[Jenny]

Hi, i am new to qtp, i am working on maitaining qtp scripts for our web browser application. we received a new version of the application, when i run our automoated scripts. qtp randomly not recognising the weblink or webedit fields of the applicaiton. I use ojbect spy and can not point to the link (it always return the page of the application)

we are useing qtp version 9.5 build 194. we launched qtp from qc.

thanks