Reports that use relate table doesn't work properly

Reports that use relate table doesn't work properly

Dear Support,

If I try create a new report using related tables, some fields isn't showed at report. 

Sample: 

      If I chose Task and Potential and Account, to show at report   task.description, potential.name, and account.name, the account.name is not showed. 

Could you help please.

Thanks. 

Paulo Miguel.