Triumphant doesn’t come from engrams. It only comes from buying at Eververse. Are you sure you aren’t confusing it with another ornament? Do you have a video of this ornament actually dropping from an engram?
Hi. Have you checked the [u]Wrapped Items[/u] section in your Inventory screen for an Eververse package that you can open? You can contact us through our [url=https://www.bungie.net/en/Help/Troubleshoot?oid=13681]Eververse Missing Item contact form[/url] and we'll be able to look more into this issue.