I have the same problem in many monolith quests, the only workaround is to close the game and eventually the very first quest would work properly, but the one right after will always have this bug.
I see you are using the Ring of Shields skill. There is a known problem with regarding loading in quest objectives while the RoS skill is active. The devs are working on this and mentioned it in the last patch update.
For now, the simplest “workaround” is to make sure RoS isnt active when you attempt to load the quest. Only activate it AFTER you are fully loaded in.
This seems to work for me (FG main) and others who are also struggling.