Rendering broken in iOS simulator

[rparrett]

Bevy version and features

main at b876c8e
bisected to #23036

presumably, this works on real devices, otherwise there would have been smoke over at https://bevyengine.github.io/bevy-example-runner/

Relevant system information

Host

MacBook Pro (M4 Max)
macOS 26.3
Xcode 26.3

Simulator

iOS 17.5 (iPhone 15 Pro)
iOS 26.3 (iPhone 17 Pro)

What you did

Follow instructions for running mobile example on iOS.

What went wrong

Black screen, and the following error:

thread 'Compute Task Pool (2)' (15858665) panicked at /Users/robparrett/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/wgpu-28.0.0/src/backend/wgpu_core.rs:2231:18:
Error in Buffer::get_mapped_range: Validation Error

Caused by:
  Buffer with 'clustering Z slicing metadata buffer' label is invalid

[alice-i-cecile]

This is also broken on Android, as far as @mockersf has said. #23208 should not have been closed, as #23216 did not actually fix this.