Using WebCamTexture.GetPixels to capture a photo doesn't work when building for iOS device

Steps to reproduce:
1. Open the "WebCam" project
2. Go to File > Build Profiles and select iOS Profile
3. Build an Run to the device
4. In the app press "02_GetPixels_Test"
5. Click on the "Semi-Automatic Test Framework" toggle at the very top to disable the UI overlay
6. Point the WebCam to anything and press GetPixels button

Actual results: After clicking the button nothing happens
Expected results: The WebCamTexture view at the time of clicking the button is captured and displayed on the bottom half of the screen

Reproducible with versions: 2023.3.0a8, 2023.3.0b10, 6000.0.0b16
Not reproducible with versions: 2021.3.37f1, 2022.3.26f1, 2023.2.20f1, 2023.3.0a7

Reproduced with devices:

• VLNQA00476 - iPhone 13 Pro Max (MLL63ET/A), CPU: Apple A15 Bionic, OS: 17.0
• VLNQA00258 - iPhone Xs Max (MT502ET/A), CPU: Apple A12 Bionic, GPU: Apple designed, OS: 14.4
• iPhone 13, OS: 17.5