Giant Spiders Putting Out Light

I'm running lost mines and my players are at Thundertree and wanted to wait until night to go in. When I turned off global illumination I noticed that my players that DONT have dark vision were seeing light. After looking for something that could be causing the light I found that the Giant spiders were putting out light that the players could see. I turned them to 0/0 but then it made me wonder if I set my players up wrong. That section is called 'Emits light' and I mistakenly used that to see up the players with dark vision. Is there a reason the spiders had light, and where should I be setting up dark vision for the tokens? EDIT: actually everything is putting off light, ie: twig blights, ash zombies, dragon and 'all players see light' is turned off

Hi Trevor, We're sorry to hear that your players are experiencing this. To confirm, this is happening with all of your players? Please have those that are experiencing this carefully work through to the first three steps of our guide to Solving Technical Issues : Step 1 : Make sure to use the right browser             - Please check if these issues persist when using both Chrome and Firefox. Step 2: Ensure that there are no extensions/addons interfering with Roll20             - Please disable all add-ons/extensions. Step 3 : Clear cache If none of the above succeeds, please have them thoroughly work through all of  Step 4 .  (Don't forget the complete Console Log!) In regards to the console log, we should only need one if all players are experiencing the same issue. Thanks!