probelm facing while capturing the viewstate value

I recorded one script (.net aaplication) using LR 11.52 and correlated all the values (All are view state values) that needs to done.

I set the web_set_max_html_param_len("4294967295"); (The max value hanled by LR)

Replayed the script around 10 times, it was working fine in vugen. but when I tried to run in the controller the script was failing.

So, I again tried to run the script in the Vugen where I got the error while capturing viewstate3.

Kindly help me finding out the reasons for above behaviour of the script.