[Problem/Bug]: Blank window after navigate in hidden state

What happened?

In our app, we are trying to start using WebView2 instead of CEF for displaying our main window's UI.
At app start, we show a splash screen, calling navigate and waiting for the navigate to complete. The browser window is hidden (SW_HIDE) while navigating. Once navigation is complete, we show the browser window (SW_SHOW). Result: its window is blank. It shows nothing. It also does not react on mouse clicks in any way (e.g. does not show context menus).

Is it an expected behavior? Can it be disabled then? What are possible workarounds?

Importance

Blocking. My app's basic functions are not working due to this issue.

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

No response

SDK Version

No response

Framework

Win32

Operating System

Windows 10

OS Version

No response

Repro steps

You can easily reproduce this behavior on sample apps (e.g. Win32_GettingStarted). For this, you need to modify Win32_GettingStarted project code in the following way:

1. Add a call to CoInitialize(0).
2. Change ShowWindow's mode to SW_HIDE.
3. Add NavigationCompleted handler and show window in it (SW_SHOW).

Repros in Edge Browser

No, issue does not reproduce in the corresponding Edge version

Regression

No, this never worked

Last working version (if regression)

No response

Start with the Win32_GettingStarted sample and reproduce the sequence involving CoInitialize, SW_HIDE, NavigationCompleted, and SW_SHOW. Inspect the window and navigation lifecycle around that sequence, then compare behavior with a visible window; done means identifying a supported workaround or documenting that the issue requires maintainer guidance.