Why Tc can't identification the same object at running the second time?

I guess I don't have to speak clearly.

the code has a cycle

Page(xxxx)=........



for(i=0;i<10;i++)

{

     Page(xxxx)........

}

I found if the i=1 then it run sussess,but i=2 then object can't be identification.I try to edit the code

for(i=0;i<10;i++)

{

    delay(50000) ;

Page(xxxx).waitProperty(.....)

Page(xxxx)........

}





but i=2 then object can't be identification again.