UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3375.0 Safari/537.36

Example URL:
https://foda-app.herokuapp.com/

Steps to reproduce the problem:
1. Open https://codepen.io/rafaelcastrocouto/full/QmdbEY/
2. Click on the Language selection menu
3. Move mouse over the options

What is the expected behavior?
No screen changes should happen in a background image. 

What went wrong?
The cloud image in the animated sky in the background is replaced with an inverted image of the menu.

Does it occur on multiple sites: Yes

Is it a problem with a plugin? No 

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version: 67.0.3375.0  Channel: canary
OS Version: 10.0
Flash Version: 

Seems like some CSS gpu memory issue.
 

Deleted: gif (0).gif 3.5 MB

	gif (0).gif 3.5 MB View Download