Hey guys, if it is inconsistent like that, the problem could be a memory issue with WordPress. I use this plugin with no issues, however another plugin I used which does create my posts by pulling content from a URL like Facebook does kept being inconsistent on which pages would import properly and which would not.
For a quick attempt at a fix, find the plugin called "Change Memory Limit" -super basic with no bells and whistles, just allows you to change the default WordPress 32MB memory limit. My site uses 43.7MB so I was stalling out, changed it to 128MB and I have had no further issues.
Also, Allen, is there a place to send suggestions for future versions?