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Fixed

Fixed in 6000.0.58f1, 6000.2.3f1, 6000.3.0b1

Votes

13

Found in

6000.0.56f1

6000.2.1f1

6000.3.0a5

Issue ID

UUM-114602

Regression

Yes

[iOS] Canvas elements disappear when an app is put in the App Switcher when the Canvas has "ScreenSpace - Camera" set as the Render Mode

-

How to reproduce:
1. Open the “iOSBlackScreenAgain.zip“ project
2. Open the “NoCanvas“ scene
3. Build for iOS
4. Open the “Unity-iPhone.xcodeproj“ in Xcode
5. Build to a device
6. Open the app
7. Press the “Set Canvas to ScreenSpace - Camera“ button
8. Press the “Set Skybox“ button
9. Swipe up to enter the App Switcher
10. Repeat steps 8 and 9 with buttons (“Set Solid Color“, “Set Depth Only“, “Set Dont Clear“)

Expected result: The app preview shows the valid snapshot (launch screen or last frame)
Actual result: The Canvas elements disappear

Reproducible with: 6000.0.56f1, 6000.2.1f1, 6000.3.0a5
Not reproducible with: 6000.0.55f1

Reproducible environment: macOS 15.6 (M4 Max)
Not reproducible environment: No other environment tested

Reproducible with these devices:
VLNQA00626, iPhone 16 (MYE73QN/A), CPU: Apple A18 Pro, GPU: Apple designed, OS: 18.5
VLNQA00358, iPhone 12 (MGJ93ET/A), CPU: Apple A14 Bionic, OS: 14.1
VLNQA00416, iPhone 13 Pro (MLVA3ET/A), CPU: Apple A15 Bionic, OS: 16.1.1
VLNQA00535, iPhone XS (MT9F2ET/A), CPU: Apple A12 Bionic, OS: 17.6.1

Not reproducible with these devices:
VLNQA00494, iPhone 14 Pro Max (MQ9T3PX/A), CPU: Apple A16 Bionic, OS: 16.3.1
VLNQA00232, iPhone 8 Plus (MQ8M2ET/A), CPU: Apple A11 Bionic, OS: 16.7.10

Notes:
- It must be Built-In Render Pipeline to reproduce the issue, it does not reproduce with URP, because it is dependent on Camera Settings
- The issue is only reproducible if Canvas is set to “ScreenSpace - Camera”
- Changing “Player Settings > Render Extra Frame on Pause” has no effect on reproduction
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Comments (4)

  1. JonAtKyoso

    Oct 04, 2025 10:39

    With the security patch released 2 days ago we see this happening now on 6000.1.17f1

  2. KoneJone

    Sep 22, 2025 06:51

    I don't have repro steps as it happens so rarely, but after this bug was fixed in 6000.0.58, I think a related bug is still present: Occasionally, when backgrounding the app on an iPhone, and then coming back, the visuals are not updating anymore, and will later degenerate to a black screen blinking.

    Taps seem to be registering and the game logic is running, but the visuals won't update at all. After a while, the visuals start blinking to black very rapidly, and eventually the whole screen becomes just black.

    Before 6000.0.56 (where this iOS/Canvas bug was introduced), this never happened, and the during the Canvas bug's existence, I had the blinking failure happen once or twice, so I have a gut-feeling the blinky bug is related.

  3. LeekAndRibs

    Aug 30, 2025 12:40

    "It must be Built-In Render Pipeline to reproduce the issue, it does not reproduce with URP, because it is dependent on Camera Settings"

    For me, it is also reproducible with URP. It looks particularly unattractive when IAPs are made and then the entire canvas (screen space camera) disappears.

    Unity Version "6000.0.56f1"

  4. GoodDayDeveloper

    Aug 28, 2025 12:00

    The problem is slightly more severe - it's not just when the app is minimized to App Switcher.
    The issue is also seen when, for example, a system notification permission popup is shown (app loses focus).

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