Issue #26840: FortDunstadandFortGreenwallStillcontrolledbyoppositefaction
So the issue that I am presenting is in regards to the civil war quest line (more specifically for the imperial side).
During the parts where you capture the stormcloak holds, after completing the quests the Battle for Fort Dunstad and the Battle for Fort Greenwall, they will remain stormcloak controlled after the battles when the imperials capture the forts.
To see what was causing this to occur and to make sure it was the Unofficial Skyrim Special Edition Patch, I did a few tests on this issue.
The first test I disabled all of my add-ons so that just the vanilla game was running. After completing these two quests both forts became imperial controlled.
The next test the only mod I had available was the Unofficial Skyrim Special Edition Patch and the vanilla game itself. After completing these two quests the forts still stayed stormcloak controlled.
The next test I ran all of my mods except for the Unofficial Skyrim Special Edition Patch and the forts became imperial controlled after completing these quests, similar to having just the vanilla game running.
The last test I did was have all of my mods enabled, including the Unofficial Skyrim Special Edition Patch, and run a fresh game. The forts were still controlled by the stormcloaks after the quests similar to just running the vanilla game and the Unofficial Skyrim Special Edition Patch.
It should be noted that Dawnstar and Riften will still become imperial controlled after the battle. In addition, fort Kastav and fort Amol do not have this issue and will become imperial controlled after their respective quests with the Unofficial Skyrim Special Edition Patch installed.
I am unsure if this is an issue on the Stormcloak side of the civil war quest line.