Joined multiple groups using the group finder, to complete the group quest WANTED: Altered Sentinel. Phasing was not working. No one in any group was able to see each other.
Blizzard has changed the way phasing works in the Shadowlands, forcing players to return to a Sanctuary before the game will update their phase to join a party member. Pugging World Quests using the LFG Group Finder to pug is now much much harder, as you’ll have to head to a Sanctuary before you can join the correct phase of your party!