Statistics on temporary table

After installing PSCBO_STATS, it seem that PSCBO_STATS.GATHER_TABLE_STATS(P_TABLE_NAME=>'PS_TL_PMTCH2_TMP5', P_LEVEL=>'LOW') does not gather stats on my temporary table.  In the time admin process, temporary table are fill with 200,00 row ans still no stats are done on those tables.

I see in the log that recstats is running, but at the end there is no stat and the performance is not there (full table scan)...  when I use the older :

DBMS_STATS.GATHER_TABLE_STATS (ownname=> [DBNAME], tabname=>[TBNAME], estimate_percent=>1, method_opt=> 'FOR ALL INDEXED COLUMNS SIZE 1',cascade=>TRUE);