Trial balance ByD- Reporting structure not shown

Hello gurus

I'm trying to execute a Trial balance from General Ledger- Report list.

I select the G/L account reporting structure that is configured in fine tuning with accounts correct assigments, but the system doesn't show the structure.

The view is always the same, all the G/L accounts without being separated and classified as the structure.

Any G/L account reporting structure that I select, and even if I let this field empty, the result of the report is the same.

Why?? How can I get it in the structure view??

Many thanks

Regards