why subreport not appearing when all parameters selected

Hi,

I designed a report with 5 sub reports and having 5 parameters.Based on the condition sub report will shows individual or it will shows all sub reports data when 5 parameters are selected. But the issue is when i select all parameter first sub report get disappeared.ie not displaying. Data for the first  report hiding because of hiding value miss match in the report.

My query is, in crystal is there any possibility of sub report suppressing because of large data? Please give me a reply and do the needed one..

its urgent