Movable Type or TypePad blog's bug, cannot import some articles(posts)

I am a new comer here (Japanese), I tried make my old blog move to Word Press from FC2 blog.
From FC2 blog, I could download all posts as only text file style, so, I use the plugin ‘Movable Type or TypePad’, I could some import my old blog posts, but, some posts still not be imported and not shown (16posts / 237posts). Even though, I tried import many time, but, the ‘Movable Type or TypePad’ said your all posts have done import. So, I don’t know what to do any more.
Please tell me what I should and please tell me easy way.
I am also going to make another old blog (1250posts) moving from FC2, so… I would like to know how to import successfully….

my Word Press Blog, below
1. ID: naomiangel blog.naomiangel.info
2. ID: naomiangel2 blog2.naomiangel.info <– some posts import fail

I tried search many ways.. but not solved yet….

Please advice immediately.

Thank you,
Naomi Angel

https://ww.wp.xz.cn/plugins/movabletype-importer/