QUESTIONS ABOUT EXPORTED LOAD WITH THE COMMAND 'LCASE -LAUNCH '

I  want to export all loads (included weight ,buoyancy , inertia ,drag load etc) at specified time during launch analysis .The commond I used is ' LCASE -LAUNCH ' AND EXP_ALOAD. The latest version of MOSES is used , so the loads  are in SACS format .

Then I copy  the loads to SACS model file and run it. Then some thing confuses me. In some loadcases , the loads make the jacket almost equivalent. BUT IN SOME CASES NEAR SEPERATE TIME, THE LOADS ARE NOT EQUIVALENT!  A very large force appears in one direction.

WHAT'S WRONG WITH MY ANALYSIS?