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Found in

2022.3.69f1

6000.0.63f1

6000.2.14f1

6000.3.0f1

6000.4.0a4

6000.5.0a2

Issue ID

UUM-128587

Regression

No

Tiny unscaledDeltaTimes (~1e-5 s) happen randomly in the iOS/Android Player

-

Steps to reproduce:
1. Open the attached “IN-125290“ project
2. Build and Run the Android or iOS Player
3. Observe the debug window inside the Player

Expected result: After 5 minutes, no tiny updates are reported
Actual result: Some tiny updates are reported after 5 minutes

Reproducible with: 2022.3.69f1, 6000.0.63f1, 6000.2.14f1, 6000.3.0f1, 6000.4.0a4, 6000.5.0a2

Testing environment: macOS 26.1

Reproducible with these devices:
VLNQA00521 - Galaxy S22 Ultra USA (SM-S908U), CPU: Snapdragon 8 Gen 1 (SM8450), GPU: Adreno 730, OS: 14
VLNQA00422 - Galaxy S21 Ultra 5G (SM-G998B), CPU: Exynos 2100, GPU: Mali-G78, OS: 11
VLNQA00615 - samsung Galaxy S22+ (SM-S906B), CPU: Exynos 2200, GPU: ANGLE (Samsung Xclipse 920) on Vulkan 1.1.179, OS: 13
VLNQA00641 - Google Pixel 9 (Pixel 9), CPU: -, GPU: Mali-G715, OS: 15 (Issue observed only when Player loses focus)
VLNQA00372 - Galaxy S21 5G (SM-G991U), CPU: Snapdragon 888, GPU: Adreno 660, OS: 12 (Issue observed only when Player loses focus)

Not reproducible with these devices:
VLNQA00634 - iPhone 15 Plus (MU0Y3QN/A), CPU: t8120, OS: 18.2.1
VLNQA00460 - Google Pixel 6 (Pixel 6), CPU: Google Tensor (Whitechapel), GPU: Mali-G78, OS: 14
VLNQA00526 - Samsung Galaxy A12 (SM-A125F), CPU: Mediatek MT6765 Helio P35 (12nm), GPU: PowerVR Rogue GE8320, OS: 12
VLNQA00336 - HUAWEI Y6p (MED-LX9N), CPU: MediaTek MT6762R, GPU: PowerVR Rogue GE8320, OS: 10
VLNQA00519 - Google Pixel 4 (Pixel 4), CPU: Snapdragon 855 SM8150, GPU: Adreno 640, OS: 12

Notes:
- The issue happens more often when pressing the power button to turn the display off/on while the Player is active or when the Player loses focus (when you press the “Recent activity” navigation button and reopen the Player), but this might be expected
- The user has reported this reproducing on iOS as well

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