Anub'arak Hotfix
Ok, we just deployed a hotfix that will repair all broken saved raids of the Crusader's Coliseum that did not have Barrett Ramsey properly spawn. Without Barrett Ramsey, raids are unable to start the event that grants access to the final boss. You will have to soft reset the instance again if you already have your broken instance open, but Barrett should be back after that. (Source)

gl hf

yup, thats why we were in uld (and not enough people ofc)