MacOS - UI Glitches

[FinalGen]

Code:

  Model Name:    MacBook Pro
  Model Identifier:    MacBookPro15,1
  Processor Name:    Intel Core i9
  Processor Speed:    2.3 GHz
  Number of Processors:    1
  Total Number of Cores:    8
  L2 Cache (per Core):    256 KB
  L3 Cache:    16 MB
  Hyper-Threading Technology:    Enabled
  Memory:    16 GB

Intel UHD Graphics 630:

  Chipset Model:    Intel UHD Graphics 630
  Type:    GPU
  Bus:    Built-In
  VRAM (Dynamic, Max):    1536 MB
  Vendor:    Intel
  Device ID:    0x3e9b
  Revision ID:    0x0002
  Automatic Graphics Switching:    Supported
  gMux Version:    5.0.0
  Metal:    Supported, feature set macOS GPUFamily2 v1
  Displays:

Radeon Pro 560X:

  Chipset Model:    Radeon Pro 560X
  Type:    GPU
  Bus:    PCIe
  PCIe Lane Width:    x8
  VRAM (Total):    4 GB
  Vendor:    AMD (0x1002)
  Device ID:    0x67ef
  Revision ID:    0x00c2
  ROM Revision:    113-C980AL-075
  VBIOS Version:    113-C97501U-005
  EFI Driver Version:    01.01.075
  Automatic Graphics Switching:    Supported
  gMux Version:    5.0.0
  Metal:    Supported, feature set macOS GPUFamily2 v1

This is a brand new macbook with very little installed running macOS 10.14.6 (18G1012).

https://www.youtube.com/watch?v=h3iLBOOldQk

For some reason the UI flickers between what looks like 2 different resolutions. You can see the first res during app launch. If I try to full screen using the in game button, the app will just hang and I have to force quit.

As you can see at the end, the system is running the game off of the Radeon and not the Intel.

Any ideas?

Thanks!