I'm fairly certain this is not a problem with anything that you have done, especially if all of your other players aren't having any issues. This kind of thing is usually related to using an unsupported browser (often Safari), and usually related to browser Javascript permissions or browser extensions. Try having the player use a different browser, or logging in in Incognito mode to see if the problem still persists. The best thing for you to do is use a Dummy Account to check things from your side, and if everything looks good, then you can reasonably narrow it down to your player's computer setup. If you're able to screenshare with them, or have them log into their account on your computer, that usually helps with troubleshooting. And just so you have it, here's my Dynamic Lighting Troubleshooting checklist. General: 1. The game creator needs to have a Roll20 Plus or Pro account to use Dynamic Lighting. 2. Make sure you are using Chrome or Firefox. 3. Do not use the Freehand tool to draw Dynamic Lighting lines. Only use the Polygon tool, and make sure that you don't have any lines that create 'sharp' corners. 1. This is the cause of unexplained/invisible lines about 99% of the time. 4. You should use a ' Dummy Account ' in order to see changes live/instantaneously when you make them as GM. There are other benefits as well. 1. Ctrl-L does not give you a player's view from a token. It shows you the token's 'Line of Sight' as GM and everything on the GM layer, but that is not what players will see. 2. 'Rejoin as player' requires logging back and forth into the game. A Dummy Account is free and can be readily toggled between two browser windows. 3. A player may control several tokens, and may see more or less than the GM sees when using Ctrl-L or 'Rejoin as player'. 5. Do not use colored or tinted lighting effects. Colored light is currently bugged due to how those lighting effects are rendered. 1. If you want to have a colored/tinted area, use an invisible token with a colored aura instead . 6. Animated .webm tokens were previously bugged and may not not work correctly. 7. Check other page settings, such as 'Restrict Movement' and make sure you are not using Legacy Dynamic Lighting. 8. Clear your browser cache and the game chat archive. 9. If you have a Pro subscription, you can install the DL Tool script to troubleshoot vision problems. My players can't see: 1. Token and light source need to be on the correct layers. 2. Token must have vision enabled. 3. Token must be 'controlled' by the player who is checking vision. 4. There needs to be a light source. 1. Tokens always emit light from a circle at the center of the token that is some small percentage of the image size. If you set the map image as a light source, you'll get some funky behavior. 5. Ensure that a token's vision is not blocked by Dynamic Lighting lines. 6. Make sure you don't have a Permanent Darkness layer on. 7. Make sure you don't have Explorable Darkness blocking vision. 8. Make sure the view is centered on a token that has vision enabled and a light source. 9. Make sure you/your players are on the correct page. Double check that they have not been split from the Party ribbon. My players see too much: 1. Make sure you don't have 'Daylight' turned on for the page. 2. Walls need to be placed on the 'walls' (lighting) layer. 1. The only thing that blocks line of sight are Dynamic Lighting lines (walls). If a token has "line of sight" to an area with a light source, then they will be able to see that area. 2. Tokens cannot block light. 3. Permanent Darkness covers an area, but does not prevent light from passing through. 3. Explorable Darkness is saved for each player. So if a player has control of a token, they will see all of their 'explored area' in greyscale. 4. Look on the 'walls'/lighting layer for any unexpected light sources. They will show up as small rectangles there. 5. Confirm which tokens the player controls. Try moving all tokens to the GM layer temporarily and moving individual tokens back to the Objects layer one by one. 6. Page 'Cell Width' settings can have an affect on a token's vision, especially if the 'light multiplier' is set to something other than 100%. Switch the Cell Width to '1' and see what happens. Token vision isn’t correct when pulled out of the journal: 1. Make sure to set up a token’s vision how you want it to be, and have the very last step be to save it as the default for that character sheet. 2. Any changes made after saving as the default token will not be saved as the default unless the default token is saved again. This is intentional to allow for temporary changes. 3. Make sure you do not have any duplicate character sheet names. 4. Also check the Journal Archive. 5. After pulling out the token, check which character sheet it is linked to. 6. A character’s default token can be linked to a different character sheet.
