How to reproduce:
1. Build And Run the user’s attached “Loading test.zip” project on iOS device
2. In the app, press the “START LOADING” button
3. Observe the app

Expected result: Activity indicator is visible
Actual result: Activity indicator is not visible

Reproducible with: 2021.3.32f1, 2022.3.13f1, 2023.1.20f1, 2023.2.0f1, 2023.3.0a14

Reproduced on:
VLNQA00494 - iPhone 14 Pro Max, 16.3.1 iOS
VLNQA00358 - iPhone 12, 14.1 iOS
VLNQA00392 - iPad (9th generation), 15.0 iOS
VLNQA00310 - iPad Pro 12.9", 13.4.1 iOS

Not reproduced on:
VLNQA00498 - Google Pixel 7 (Pixel 7), CPU: Google Tensor G2, GPU: Mali-G710, OS: 13
VLNQA00334 - Xiaomi Mi A3 (Mi A3), CPU: Snapdragon 665 SM6125, GPU: Adreno 610, OS: 11
VLNQA00017 - Huawei Nexus 6P (angler), CPU: Snapdragon 810 MSM8994, GPU: Adreno 430, OS: 8.0.0
VLNQA00409 - Galaxy Z Fold3 5G (SM-F926B), CPU: Snapdragon 888, GPU: Adreno 660, OS: 11

Note: when debugging the scene in Xcode, the activity indicator is in the view hierarchy (user’s info)