Strange black blocks appearing in Chrome

Update: This was a bug in Chrome and was fixed: https://code.google.com/p/chromium/issues/detail?id=142038

eddz filed the issue at crbug.com/new and over 40 people starred the ticket to follow along. It led to a few separate fixes in Chrome by the engineering team.

I had this issue with a website that was using transformZ (0) to force GPU rendering. When I removed this style the issue disappeared