Some notes not imported

[pvdiamon]

Here is an example. An Evernote notebook has 33 notes, and they all seem to export to ENEX. But on import, although it looks like they are all importing on the app, several are missing. I noticed that it seems some tags aren't getting recognized for pages. So if I had notes within 10 tags, only seven show up as sections. I don't see the others anywhere. Is this a known issue, or am I missing something about some tags?