I installed Revel on my iMac and my MacBook Pro, using the same Adobe ID. I was under the impression that a main purpose for Revel was to have all your photos in one place. However, if I access Revel from my MacBook, my carousel is different that if I access Revel from my iMac.
If your machines are signed into the same account, and are looking at the same carousel, the 2nd machine should indeed see the images. This is true even if you have disabled Keep Originals on the 2nd machine.
Do you perhaps have two carousels in your account, one machine uploading to your first carousel, and the send machine pointed at another carousel? You can check this in the app settings.
If the user details are the same, and you're using one carousel, and the discrepancy of what is displayed persists, I suggest cleaning your machine that seems to be troubled and letting the content sync back down from the cloud.
The steps for the troubled machine are:
1. Let any originals that are still uploading finish their migration to the cloud
2. Then quit Revel.
3. Remove the app from the Applications folder
4. Remove these files and folders (they will be rebuilt later automatically):
~/Pictures/Adobe\ Carousel\ Library.cr
~/Pictures/Adobe\ Revel\ Library.cr
~/Library/Saved\ Application\ State/com.adobe.Carousel.mac.savedState*
(Note: not all items may exist on your machine; if you are not able to see files and folders because your user library directory is hidden, use Finder's Go To Folder menu to access: ~/Library)
5. Reinstall Revel from the Mac App Store, and sign into your account.
If none of this helps, please reply back so we can troubleshoot this further.