When I place a sightstone in some parts, it will be gone after a few seconds. I'm pretty sure they did not put vision wards. Anyone has the same problems??
Sightstone can only maintain 2 wards at a time. If you place more than 2 wards, the ones you placed first will burn out right then.
Ruby Sightstone can sustain a 3rd ward, but has the same rules. Placing a 4th will cause the 1st to burn out.
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