Anyone else seeing this album art formatting problem with Squeezecenter (see attached screenshot)?

I'm running the release version of 7.0 and the default skin on a Gentoo Linux machine. If I set the interface to "hide artwork", it still leaves one large artwork placeholder showing. I assume that the right-hand artwork placeholders should be the same size as the ones one the left hand side.

I wanted to check for any obvious lapse on my part before filing a bug report, so thanks for any help in advance.