To reproduce:
1. Open user attached project "Test.zip"
2. Open "Test.unity" scene
3. Enter Play mode
4. Go to: https://requestinspector.com/p/01ddq3xq6q5vqjhdvf1p065jc4 and copy the JSON output
5. Paste it in: https://jsonformatter.curiousconcept.com/ and observe as the JSON is valid
6. Build for iOS
7. Deploy the Xcode project to iOS device
8. Repeat step 4 and 5

Expected result: JSON is valid
Actual result: getting invalid JSON

Reproduced on:
2019.1.4f1 2019.1.8f1 2019.2.0b7 2019.3.0a7

Not reproduced on:
2018.4.3f1 2019.1.0a2

Device reproduced on:
- iPhone XR iOS 12.0
- iPhone 8 Plus iOS 12.1.2

Device not reproduced on:
- VLNQA00123, Google Pixel 2 XL (Pixel 2 XL), Android 9, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540

Notes:
- Not getting JSON in the link provided in step 4 on 2019.1.0a3 - 2019.1.3f1