The no.14 Skyshard is bugged right now, originally it is located in the" central part of Stonefalls area, inside Hightide Hollow – public dungeon (torch icon). Head to the east of Hrogar’s Hold Wayshrine". , right now i can not find it near the dungeon boss position, instead i find a one under the first bridge, however i can not active this one as it is already grey.
I think it is definitely bugged that need to be fixed