Window resize crashes on DX12 software renderer in 0.18.0-rc.1 (regression from 0.17.3)

[natepiano]

Bevy version and features

0.18.0-rc.1 (works in 0.17.3)

Relevant system information

• Windows 11 VM (Hyper-V)
• Microsoft Basic Render Driver (DX12 software renderer)
• wgpu 27.0.1

Rendering related - AdapterInfo

AdapterInfo { name: "Microsoft Basic Render Driver", vendor: 5140, device: 140, device_type: Cpu, driver: "10.0.26100.7309", driver_info: "", backend: Dx12 }

What you did

Minimal app with just DefaultPlugins:

  use bevy::prelude::*;

  fn main() {
      App::new().add_plugins(DefaultPlugins).run();
  }

Launch the app, then resize the window.

What went wrong

App crashes immediately on resize with:

  ERROR wgpu_hal::dx12: ResizeBuffers failed: The application made a call that is invalid. (0x887A0001)
  ERROR wgpu_core::device::global: surface configuration failed: window is in use

  thread 'Compute Task Pool (2)' panicked at wgpu-27.0.1/src/backend/wgpu_core.rs:3793:18:
  wgpu error: Validation Error
  Caused by:
    In Surface::configure
      Invalid surface

Additional information

• No Vulkan driver available in VM, wgpu falls back to DX12 software renderer
• App launches and renders fine, crash only occurs on resize
• Same code works without issue on bevy 0.17.3
• This appears similar to DX12 backend panics when window is resized #15077 which was fixed by clearing ViewTargetAttachments before resize - possibly a regression or variant of that issue

[janhohenheim]

can reproduce, though I don't actually get a panic. It just quits when releasing the click 🤔

20251221-2247-00.0801129.mp4

For anyone wondering how to reproduce, set the env vars like this on PowerShell:

$env:WGPU_BACKEND="dx12"
$env:WGPU_FORCE_FALLBACK_ADAPTER=1

then do cargo run on the issue's snippet

[natepiano]

I painstakingly bisected (windows vm is verrrryyyy slooowwww)

Bisect result: Regression introduced by PR #21866 (bf3cf7e)

• Last good commit: 5c77006
• First bad commit: bf3cf7e - "Only present when RenderTarget has been written to"

cc @Charlotte (PR author)