Shot a sow with a broadhead arrow and was following the trail of bloodscape. Waist deep snow, clear weather at noon in pine mire makes the trail can't be more obvious. My hounds went to chase the sow and I slowly trace the trail, until the loading map screen appear and suddenly all bloodscapes in front of me disappeared. And the barkings also stopped. I head towards the direction the sow ran and founded my hounds stop chasing the sow. They are no longer aggressive, but I think they should be? The wounded sow isn't really that far from that dogs, around one and a half screen further only. Don't know if the dogs stop chasing the sow is a bug or not, but I guess the blood suddenly disappeared is abnormal.
Update: Can confirm dogs also stop being aggressive when another tile of zoom-in map is loading, they just did that again right in front of me and return to me after I told them to chase another sow. I back up the save, let me know if it is needed
Another update: Bloodscape disappeared again even map tiles aren't loading, and I seriously don't know why this time. Photos attached.
Yet another update: Dogs stopped being aggressive and stop chasing sow even when they are just tile from the sow after zoom-in map loading/ buffering, right in front of me, photo attached.