Help Please...Battle For Whiterun Won't Start (XBOX)

Hello all, getting a little frustrated...I'll try to keep this short. I am playing on a new character via an Alt Start mod so that I can avoid the main quest line.

I am currently trying to play through the civil war quest line and I am stuck here...

I finished the "MESSAGE TO WHITEREUN" quest and was told to report to Legate Quentin Cipius.

He says the line that the Stormcloaks are here and it's time to defend the city ya da ya da ya da...but the Battle For Whitreun quest will not start. I do not get a new objective in my journal or anything. Literally nothing happens. I go back to talk to him again to see if the quest will trigger, but he just repeats the same line over and over.

I have tried to fast travel back and forth from various locations to Whiterun. Tried waiting over 72 in game hours to see if anything triggers, even loaded old saves, and no luck. I don't really want to do another clean reset, but if I have to then it is what it is.

I even tried to go back to Windhelm to see if Ulfric or his side kick might say something that triggers the quest, but they say that they are waiting on a message from Whiterun.

Does anyone know of a fix for this, if they have experienced it? Any help is greatly appreciated.

I am on Xbox Series S.