Not yet rated

Sorry for the goose egg, but if it doesn't work, it shouldn't get a rating.

There is no logical explanation for the error counts of messages, it is not consistent in the error and appears to be random.

When you want to export a folder, you want to do just that, all messages, not some, not a few or a range, ALL.

It doesn't do that and therefore it doesn't work and should be taken off the board.