Jet exhaust not properly rendered on macOS

I just loade up my game and every aircraft that taxis is now displaying jet engine exhuast as a non tranparent image.

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COLLECTED HARDWARE DATA
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Application version: Beta 5.0-0

Device
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Model: MacBookPro15,2

Operating system: Mac OS X 10.16.0

RAM size: 16 GB

Battery status: Full
Battery level: 1

Processor device
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Type: Intel(R) Core(TM) i7-8559U CPU @ 2.70GHz
Core count: 8
Frequency: 2 GHz

Grahpics device
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Vendor: Apple
Type: Intel(R) Iris(TM) Plus Graphics 655
Memory size: 1 GB

Screen summary
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Full screen: True
Resolution: 1440 x 900 @ 60Hz