FIXED IT - FOR THOSE THAT NEED THE WORKAROUND
If you clicked on the Stormwind Portal like me during the quest line, it will send you back to SW and completely mess up your access to the rift. Follow these steps:
- Go to Ogrimmar/SW and portal to Azsuna (Legion Dalaran)
- Fly from Azsuna to Dalaran while
- Chamber of Guardian will be there, take the portal and follow the steps