videos playing turn green

Upgraded Safari to Version 11.0.1 (13604.3.5) now when I play a video on Quicktime player the video turns to green, you can still see the video but it's like the green is now maxed out. How do I correct this.

Mac mini (Late 2012)

10.13.1

2.3 GHz Intel Core i7

Intel HD Graphics 4000 1536 MB