Building Aid Quest Bug

This is the second time this has happened to me with the same type of quest. Different Forest realms. It is the one when there is three poles at the side of the building. Trying to build the chandeliers is extremely difficult. If everything in the building breaks rebuilding is impossible as basically you end up with the three poles on the side of the camp not being able to be completed. You are stopped from adding any more resources to finish the building. The first time I encountered this I assumed it was me that caused it to happen. This time - I know it's not.