I joined your game and took a look and did not see it, myself. Do both the GM and the other player in the game see the line, or just your one friend? I don't have high hopes for this fixing the issue, but we definitely need to try it before we dig too much deeper. So, could you go through the following steps and see if they fix anything, please. Could you please carefully work through 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 and anti-virus programs. Step 3: Clear your cache If none of the above succeeds, please thoroughly work through Step 4 . (Don't forget the complete Console Log!) Once your game has loaded and the log has stopped moving, mouse over the area to make the white line appear and click in the area. I don't think anything will show up in the log, unless something is breaking which I will want to see.