Selissa

I have experienced something similar since receiving the quest "The Battle of Yenwood Field". I got news that my stronghold would be attacked in some days and as I was 'at home', I decided to defend the stronghold manually. After I defeated the attackers, there was suddenly this mob in front of the stronghold with Marshal Forwyn in front of them talking about "The Battle of Yenwood Field". As I had not finished the quest by then, I chose the conversation options to start the battle which I won. When I returned to my stronghold though, the mob and Marshal Forwyn were still there outside the stronghold and I still got the conversation option to start the battle. Out of curiosity I chose that option and again got the texts for "The Battle of Yenwood Field" though there were no more enemies on the battlefield after clicking through the texts. I used a save with which I lost several ingame days of play time (and thus, the quest was no longer completed) and when I received the message again that my stronghold would be attacked, I chose the "defeat automatically" option. After successfully defending my stronghold this way, there was no mob and Marshal standing in front of the stronghold. The next time, I received news of incoming invaders, I had the same results: Defeating the enemies manually resulted in a mob standing in front of my stronghold whereas defeating the enemies automatically did not affect "The Battle of Yenwood Field" quest in any way. BTW I have not completed the quest by now.

I have the latest steam version with Whitemarch I+II installed and I have the same problem. The ogre and his bears were friendly and he talked about an understanding we both have had although we had never talked to each other! The journal entry said "Now that I have dealt with the ogre, I can return to Dyrford and farmer Rumbald". When I talked to him though I had no option to end the quest. It is rather odd that the journal entry on the one hand mentions that Tyrgil told me about the location of the ogre cave - which he did as I talked to him about the ogre - and on the other hand the quest got "updated" when I had to kill him so that it also mentions that Tyrgil is dead and no longer of use for me. I killed the ogre, got his head and the journal entry updated to "Now that I have dealt with the ogre, I can return to Dyrford and farmer Rumbald. I killed Korgrak. Rumbald will be pleased to see the beasts head." Now I have the option to present the head to him and end the quest. I just checked, I have no save after receiving the quest but before entering the cave.