Upgrade auf Serendipity 1.4.1

Dear Lazyweb,
some time ago I upgraded my Gallery2 installation to 2.3-1 and since then I’m missing the exif information in the block below the foto. Although the exif plugin is activated and the exif plugin is properly configured (default). The Theme is configured to show “EXIF/IPTC photo info” to show the exif block on photo pages, but as you can see on this example there’s no exif data showing up.

The exif console tool is showing the correct information for those images, so I can’t figure why gallery2 fails here. Any tips how to get exif information back into my gallery2, dear lazyweb?