What is wrong!
it's just not working properly in 80% of of all time
When I export it from After effect to ME it's not rendering at all even not starting!
Sometimes when starting its showing error
HOW Horrrible is it when you can't Expect this program working and clients is disappointed about extending dead lines!
Can you give any more details? Mac or PC? System specs? Adobe versions? It's incredibly hard to help with the generic vagueries you've supplied.