I've moved this to the InDesign EPUB forum.
If they work before converting to MOBI, you'll probably have to take this up with Amazon.
Thank you Derek,
I also use Flightdeck, but it doesn't address the issue. I have grouped a photo and caption, exported group as object and hyperlinked, but the hyperlink is lost once converted to mobi. It isn't a marketing link either. I am wondering how to get past this problem.
For instance, will buttons work if Iturn the grouped object into a button rather than simply applying a hyperlink? It is hard to know because everything works on my computer (mac), and I only find out about the problem once it gets to the client and the client uploads it to KDP, downloads and sees the problem.
I can't find anyone talking about this problem and it is a problem I have run in to before....??? I don't know what to do.
Someone must have solved this as some point...