Not all Triple-T Metadata for Threema is Processed

The Threema Libre app (metadata: https://gitlab.com/fdroid/fdroiddata/-/blob/master/metadata/ch.threema.app.libre.yml) does not show up on the website with a logo or with screenshots: https://f-droid.org/en/packages/ch.threema.app.libre/ However, all texts are correctly taken from the metadata.

The metadata is provided in-source in Triple-T format: https://github.com/threema-ch/threema-android/tree/main/app/src/libre/play/listings/en-US

Any idea how to get logo and screenshots to show up? Do you have logs somewhere to help debug the issue?