Just tried collecting a blacksmith survey report in Craglorn and the nodes disappeared when I approached them. I ran away to see if they would come back and found my woodworking report nearby. In the middle of harvesting they all disappeared along with the report of course. I only managed to collect maybe 3 before this happened. Told a friend about it and the same thing had just happened to him too. We bug reported it, but just a warning to others, might want to hold on to those surveys for a few more days.