UE4 on mac in 2016?

What brand is it? It sounds like a poor design. If you bought it from a high-quality brand, then talk to them about false advertising and see if they will buy it back under warranty coverage. If it’s a cheap brand (which includes **** like HP consumer computers) then you’re probably screwed and need to sell it on eBay and buy something else.

Personally, I’ve had luck with Dell, MSI, and Razer Blade laptops for development over the years. The Dells require the heavier, more expensive models. The MSI are good value for money, but depending on model is hit-or-miss. The Razer Blades have all worked fine, and I now recommend those for engineers at work who previously would use MacBooks, because Apple has stopped making hardware for computing/media professionals.