I'm finding that on my Mac, chrome cannot display the VTT when the chat window is open. The VTT disappears in parts and lags very hard. Switching to another tab other than the chat fixes the issue. Here's a gif of the issue: Troubleshooting steps conducted: Make sure to use the right browser Only occurs in chrome, firefox does not exhibit the behavior System/browser info: Chrome Version 76.0.3809.100 (Official Build) (64-bit) MAC OS X El Capitan 10.11.6 (15G1004) Does not occur on Windows system Ensure that there are no extensions/addons interfering with Roll20 Behavior continues with all extensions/addons disabled Clear your cache Behavior continues after clearing cache Provide a bug report Console log can be found in this gist EDIT: Appears to be caused by some sort of chat log corruption?