Short dump after AC_FLUSH_CALL

Hi all,

I'm using Netweaver 04 and I've developed a report that displays a dynpro containing a dynamic document and it auto-refreshes itself through the CL_GUI_TIMER class.

After a period of correct working the report crashes with a short dump about the wrong exit of AC_FLUSH_CALL function module (CL_GUI_CFW->FLUSH method). sy-subrc = 2.

Can you help me? Thanks in advance.

Angelo