UPDATE III:
Space Engineers Hotfix 1.192.022 is live! For more information, please see this link:
https://forums.keenswh.com/threads/update-1-192-economy.7403364/
We’re aware of issues some players are experiencing trying to access the new free additions for the Space Engineers DLC (SE Deluxe, Decorative Pack, & Style Pack) & we’re going to be releasing a hotfix soon to address these issues🛠👨🚀.
We apologize for the inconvenience and we appreciate your patience.
In the meantime, these troubleshooting steps have addressed the aforementioned issues for some players:
-Logout and back into Steam
-Make sure you have all of the Space Engineers DLCs installed
-Restart Space Engineers