Why does uploading multiple images only show the first one?

when editing photos in an email, if you select replace photo, then upload several photos, then click done and get back to the image selection dialogue box, you only see the first one. You have to cancel and go into replace photo again to see all the photos you just uploaded

Here's a screen shot video showing what I mean: https://www.loom.com/share/b9216b8ca69f4037a6aac7c00fe540e4