• VSCode Version: 1.12.0
• OS Version: OSX Sierra 10.12.4
• Retina MBP, 15-inch, Mid 2015
• Graphics: AMD Radeon R9 M370X 2048 MB Intel Iris Pro 1536 MB

Steps to Reproduce:

1. VS Code maximized (not full screen)
2. Click in Javascript or HTML file

Extensions installed:

• dzannotti.vscode-babel-coloring
• waderyan.babelrc
• ceps.theme-darcula
• gerane.theme-dark-dracula
• HvyIndustries.crane
• donjayamanne.python

Etc:

• Occurs when all plugins are disabled
• Does not occur when window is not in focus
• Problem did not occur until most recent VS Code update.
• Occurs on external 4k display at 3360x1890 but not on built-in MBP display at 1920x1200

Happy to provide more info if needed. Thanks so much for all of your great work, I love VS Code!