Can't display values from memory

Hi, all experts

i am having trouble displaying the value that i have imported to memory.

EXPORT keyfgr           FROM  p_keyfgr     TO MEMORY ID 'CM_KEYFGR'.

EXPORT fcst_filedata    FROM gt_fcst_filedata[]       TO MEMORY ID 'CM_FCST_FILEDATA'.

SUBMIT (g_hlp_progname) WITH fpath  = p_fname
                           WITH vrsioz = p_vrsioz
                           VIA SELECTION-SCREEN
                           AND RETURN
                           .

When i want to use this value in my other tcode is doesn't display value. pls, help

IMPORT keyfgrTO D FROM MEMORY ID 'CM_KEYFGR'.

IMPORT fcst_filedata TO GTA_fcst_filedata FROM MEMORY ID 'CM_FCST_FILEDATA'.
     LOOP AT GTA_fcst_filedata INTO WA_fcst_filedata.
          WRITE: / WA_fcst_filedata-FIELD1.
    ENDLOOP.