Missing some products after migration

[karaoke]

Hi,

I have 6872 products in my old VM(v.1.1.9) installation. After migration, I can see 6677 products in my shop totally and apparently VM migrator skips some products while it migrates the categories perfectly. I tried the migration several times and every time got the same result(6677 products) . I'd greatly appreciate if someone give me a solution to resolve this problem.

Thank you in advance.