Where are you images stored? Images are not broken for me...
Remember, Images need to be publicly accessible to be properly used... Images are not "uploaded" into Adobe, images are just linked to their source. But images in the PDF will be embedded, not linked.
So if you have an image that is behind your firewall, you and your users may be able to see it... but when the server side PDF rendering occurs, that server cannot access your internal network, the image will appear to be a 404, and therefore will be broken, and cannot be added to the PDF.
Now, if the images you have are sensitive, and cannot be posted outside your network, that will be an issue... This is something that has been raised by a few people in the Champions group, that we need to be able to upload images into Adobe for security purposes.... so that we don't have to use things like imgur to host our images.
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