SIGHTSTONE IS BROKEN!!
I am a support main and every game around the 20-25 min mark my sightstone will not refill for the rest of the game. I back and leave to go to lane and the sightstone will still say 0 wards. It is extremely frustrating as I can not provide the vision needed for my team. The only 'fix' I have is to upgrade my sightstone to a ruby sightstone, this seems to refill when I go to base but this option still breaks sometimes and doesn't refill. I don't believe this is an issue with Eye of the Watcher/Oasis/Equinox, but as I prefer to have a sightstone and build Frost Queen's Claim or Face of the Mountain.