Hi, I can't say if it is related to doing dailies for WB a Delves in group or with companions or both. But with Wife we encountered problems with Faun Falls WB daily and Shipwreck Shoals Delve quest.
In both we can't progress the quests because we can't use the corpses for taking rings (WB) and "Enemy Intelligence" books (Delve quest) when we was in group with companions.
In delve we met someone who had exactly same problem, he can interact with that book but for quest was not counted and there was still quest marker.
After 3rd try of canceling and resharing quest I decided to leave our group and take away companion. And after that we finaly completed that delve quest and we went to complete that WB daily alone without companions and group and it was succefully completed.
So, group or companion (it will be not a first time when companion bugged whole quest) or both?
In both we can't progress the quests because we can't use the corpses for taking rings (WB) and "Enemy Intelligence" books (Delve quest) when we was in group with companions.
In delve we met someone who had exactly same problem, he can interact with that book but for quest was not counted and there was still quest marker.
After 3rd try of canceling and resharing quest I decided to leave our group and take away companion. And after that we finaly completed that delve quest and we went to complete that WB daily alone without companions and group and it was succefully completed.
So, group or companion (it will be not a first time when companion bugged whole quest) or both?