Missing gold when claiming Skarner Crystal Spires

When I was playing a normal draft mode game, me and my friends where going to go claim a Skarner Crystal Spires near the dragon pit. When we all stepped on the Crystal Spires (four of us) it, It said we all got 8 gold. When we checked our gold, it said we only got 7 gold. I have a link which I will post below. I have not gotten a chance to try it to reproduce it yet.

Here is the link: Video