On the Rockhampton map of Floods at Home Part 1 (ST-HN9CS9IDR)
I set a scene where there is a temperary retaining wall aroung a building, as it is to keep the flood waters from getting in the building.
On the objective task is to set up 20 pillars on the southern side. they are visable, not set up to appear by trigger. Once completed, I have 6 of the 20 pillars disappear. Very simular to the disappearing NPC bug that we had after season 7 launch, with this bug.