Image gallery loads large files not in use

Bug can be seen on my site - when inspecting the network tab.

Might only be affecting the Inbox block, but when using “image gallery” as a field item, the page always loads two large files, regardless of whether they’re in use:

Pic 5 is 2.2MB, so it affects page load quite a bit. I’m guessing the block always requests the placeholder images regardless of whether there is content to fill?

I think the same thing happens on the list details block with image gallery fields.

EDIT: also happens on “List with vertical cards and tag” with the image tile field. The page loads placeholder images, pushing up page load times by quite a bit.