Correlation not working always

Hi,

In our script Correlation is working some times and some times it is not working on same day.

also same issue we are facing  in Controller also.These are auto correlated values.

Any help is really helps.

web_reg_save_param_ex(
  "ParamName=loginTime",
  "LB=name=\"loginTime\" value=\"",
  "RB=\"/>\r\n\t\t\t\t\t                \r",
  SEARCH_FILTERS,
  "Scope=Body",
  "IgnoreRedirections=No",
  "RequestUrl=*/www-1000t.aaa.com/*",
  LAST);

web_reg_save_param_ex(
  "ParamName=jsessionID",
  "LB/IC=id=\"jsessionID\" value=\"",
  "RB/IC=\"/>\r\n\t\t\t<input type",
  SEARCH_FILTERS,
  "Scope=Body",
  "RequestUrl=*/UserAuth.do*",
  LAST);

Thanks

Ravi