Might it be a resolution problem?
Lets start:
When i first started to play the game when it was released I noticed it was difficult to light a fire. The problem was that i couldnt point at the fireplace and i couldnt light it. I could try it 5 ot 6 times and the fire wouldnt light. Soon i realized that i could light it allways if i zoomed in. Like damn close. Now the same happens to me with kilns. I need to zoom to be able to light them or to fill it with branches. I use a 48'' tv to play.
Ill maek a video if necessary.