I'm creating a portfolio gallery (using the portfolio tool). I'm creating each new portfolio item in 'edit project', then uploading a landscape orientation for each. The first project was fine. The two subsequent projects have generated 'portrait' orientation thumbnails from the uploaded landscape images. I don't think i've selected any options for these two projects that would change the orientation.

To clarify, the two 'portrait' orientation images are cropped versions which fill the thumbnail. Both are the same width as the landscape oriented thumb but twice the height.