I've gotten as far as clearing out Fort Hraggstad and returning to Solitude to report this. At this point you're supposed to go talk to Legate Rikke to get the next queststep and also head to the Solitude smith and get your Legion armour
Now for various reasons I didn't do this directly after talking to Tullius, but didn't come back until several hours later later (we're talking maybe having played 20 or so hours more before returning). So today I attempted to go to Legate Rikke to go to the next step. What happens is I get into Solitude without any issues, pick up the armour from the smith. Here's where it get's wierd though.
As I enter the courtyard of Castle Dour, Captain Aldis (but no other NPC) instantly becomes aggro and starts attacking me as soon as he sees me. If I enter the Castle, Legate Rikke and General Tullius respond to my presence in the same way, making the civil war questline completely broken for me.
Anyone else seen this and/or have a possible fix? I've tried loading a previous save (about 5 hours of playtime earlier) and the problem is not present, they act as they should. Can't figure out what went wrong in those 5 hours of gameplay to cause this

Any idea for a fix would be great, as I'd rather prefer to avoid having to reply those hours of playtime if I can
