Hi cornz38, can you try these steps and see if they help? If they do not, please provide me with video. Thanks!
I experienced this same thing. After completing the game I would reset the outposts for a last confrontation before restarting the game.When resetting the outposts, Baron lumber mill shows up as a hostile strongpoint, until you visit and then it loses its hostile status.
This issue has occurred on all 4 occasions.
would you still live video of the issue?
https://1drv.ms/v/s!AoEv-9vBdzh_hK9nSFbLmXNN_0Tl8w
Thanks for the video! We'll pass the video along for investigation. If anyone else has this issue, please let us know! I'd recommend these steps as well. If you have any videos or screenshots of this issue, please provide those as well!