Hey there. You don't appear to own any DLC on either platform, however DLC licensing is something the platforms themselves control, not Bungie. You should check your purchase history for both, locate the DLC expansions there. If they've gone, then you'd need to work with their own platform support to understand why. If you can find the DLC, then you might want to try restoring your licenses. I've never actually needed to do that but there should be instructions online for it. There have been 'open weeks' for DLC in the past, so ownership of an exotic is not necessarily proof of DLC ownership - the Beyond Light and Shadowkeep campaigns have been added as f2p so I believe Salvation's Grip is now f2p as it's a campaign step rather than a post-campaign activity. Edit: Should also add, DLC does not cross over cross-save, DLC owned on XBox will not be available on Steam.