Amazon 'Look Inside'

This isn’t really an issue with Scrivener but I don’t know where else to post it.

I recently noticed some very odd (and ugly) changes that seem to have been made to the Look Inside feature. This happens on books that were properly formatted using Scrivener. They were then checked using Kindle Previewer 3 and Kindle Cloud Reader. They look fine on all devices but the Look Inside looks very unprofessional. Can anyone tell me what is the latest state of things with Look Inside? I remember there being problems a while back, two years or more. Have they not been solved yet?

This isn’t a problem with Scrivener at all. Even when I create an HTML file, it all looks perfect. How am I supposed to alter what (unknown) formatting Amazon imposes?

Any help appreciated.