Messages sent with Internal Messaging get cut at the first 'ä' or 'ö' character. (Only checked those two, could affect many more characters). Messages that contain only ascii characters work fine.

Messages show up truncated in the database too. However, messages delivered as email have all the whole message, but it is a bit messed up. The problem characters are replaced with ? character. (That's a small black square on one of its corners with a question mark in the centre, in case it doesn't show up right.)

I have been hitting some other unicode-related issues as well, but on the whole the migration went well and system seems to be working.