I recently updated my computer to macOS High Sierra 10.13.6 and Endless Space 2 began having graphics problems. I'm not sure if it's caused by the update but I think it's the most likely cause.

Computer specs:

MacBook Air 2017

macOS High Sierra 10.13.6

Processor: 2.2 GHz Intel Core i7

Memory: 8 GB 1600 MHz DDR3

Graphics: Intel HD Graphics 6000 1536 MB