Some users report not being able to post to TypePad, seeing it return an error: "Wide character in subroutine entry at /usr/local/prod/cpan-lib/HTML/PullParser.pm line 83.". Apparently, TypePad engineers working on upgrading the TypePad code base have slipped in an error so that it cannot handle UTF8 characters anymore. The TypePad people are aware of it and working on a fix. In the meantime, there is a work-around. In ecto, open "Edit Settings..." under the Weblog menu. In the dialog that pops up, go to the Preprocessing tab and check "Encode HTML-entities". Once the bug is fixed in TypePad, you can toggle that setting back again.
UPDATE: I've been informed that TypePad will roll out a fix next week.
UPDATE: This has been fixed as of Friday, 19th, JST. You can turn off HTML-entity conversion again in ecto now that the unicode characters are recognized properly.