Question about Jetpack Tiled Gallery block

Hello.

If I create a gallery with five images using the Jetpack Tiled gallery block set to the Tiled Mosaic style, the images are displayed with two on the first row and three on the second row.

If, instead, I use the Classic block and add a tiled gallery, set to Tiled Mosaic as the gallery type, the images are displayed as two on the first row, two on the second row, and a large image on the last row. This method uses the [ gallery ] shortcode Jetpack provided prior to the rollout of the block editor.

It’s just a personal preference, of course, but I like the second layout better; and was thinking that the new Jetpack Tiled Gallery block set to Tiled Mosaic style would look the same as the classic-block Tiled Mosaic gallery.

So … why does the Jetpack Tiled Gallery block display the images as two on one row, and three on another; rather than two-two-and-one? Is this a bug, or is it just the way the new block works?

I created a temporary page to show the difference, link below, using the same five images in both examples (and they are all the same size). The first gallery on the page uses the Jetpack Tiled Gallery block, the second uses the Classic block with a tiled mosaic gallery.

Thanks for your help!

The page I need help with: [log in to see the link]