I'm not sure if this is me misunderstanding how the system works, but having skimmed this thread I've seen enough similar complaints that I feel like this could be a bug, rather than a layer 8 problem. I've launched a sandpit game by using the Underworld Speculation from the XGE bundle, and have added a new page. On that page I have created a map - just a simple dungeon. Because I don't want to have to position torches everywhere, I've enabled dynamic lighting, and daylight mode. I've then drawn in walls on the dynamic lighting layer. This morning I tested with one of the pre-generated characters. I set the character to Token Vision -> Vison On. I set that character to be controlled by a test user (not my DM user), dropped it into the dungeon, and lo, as the test user, the character could see as far as the corridors extended - everything worked just fine. This afternoon with my group, we created four new characters. Once the characters were complete I did exactly the same - set the character to Token Vision -> Vision On, and dropped the tokens into the dungeon. I set the characters to be controlled by exactly the same test user, but none of the characters can see. If I disable dynamic lighting, the whole map is visible. If I re-enable it, the whole map goes dark, despite me ensuring that daylight is on, and the tokens have vision enabled. I've just tested it with another pre-generated character, and it works fine. Am I missing some subtle difference between the pre-generated characters and the ones I made? They look identical in terms of settings and who can control them.