Hello Stellaris Community, Shortly after the release of Astral Planes yesterday, we began receiving reports of players being unable to verify ownership of the new DLC. These reports began as a sporadic issue that gradually worsened as the time passed since release. About an hour after release, the Dev Team identified a configuration issue with the Astral Planes DLC and put together a new build that we believed would resolve this issue for players. Unfortunately, while this build resolved the DLC Ownership issue for the vast majority of players, there were some players that this fix did not work for, with a higher proportion of those players being Linux and MacOS users. The Stellaris team has spent today digging into the DLC Ownership issue, and working on potential solutions. We believe that we have now found the root cause of the DLC Ownership issue - a mismatch between the DLC checksum as reported by the DLC and as calculated by the game, and we have come up with a fix that should work for all players. This fix is live now, and should resolve these issues as far as we can reproduce internally. If after installing this latest update, you still continue to experience issues with verifying DLC Ownership:

• (Windows) Run Steam as an Administrator - exit Steam, right-click the Steam shortcut and click Run as Administrator
• Verify Game Files - In Steam, right-click Stellaris, Properties, Local Files, and Verify Local Files