SuspenseBoundary not working as advertised?

**Problem**

I am trying to use a `SuspenseBoundary` in a desktop app for showing a loading screen until my app is loaded in the background.

That does not work at all

**Steps To Reproduce**

Steps to reproduce the behavior:

- Clone this repository (minimal reproduction example): https://github.com/matthiasbeyer/dioxus-suspense-bugreport
- `dx serve`

**Expected behavior**

The progress is updated until it reaches 100%.

**Screenshots**

The percentage is not updated.

In the Devtools Inspector I can see that the `main` diff is updated once and after that, the WASM seems to crash:

But my "update the percentage" future continues to run as expected, although it is to note that the future seems to be started **twice** - which is IMO also unexpected:

**Environment:**

- Dioxus version: 0.7.3
- Rust version: 1.93.1
- OS info: NixOS 25.11
- App platform: desktop