iCloud for Windows disconnects after 1–2 minutes on UTM 4.7.4 (Windows 11 VM, ARM64)

(Hello, I don’t speak English very well, this text was translated for me. Thank you for your understanding.)

I am running Windows 11 ARM64 on my Mac using UTM.
I use iCloud for Windows (from Microsoft Store) mainly to sync my Google Chrome bookmarks with Safari.

Since updating to UTM 4.7.4, I can sign in to iCloud and validate with 2FA, but after 1–2 minutes my account is automatically disconnected.
I tried uninstalling and reinstalling iCloud, but the problem persists.

When I downgraded to UTM 4.6.5, the problem disappeared and iCloud works normally again.

So it seems that something introduced in 4.7.4 is breaking iCloud session stability on Windows 11 ARM64.

Environment:
• Host: macOS (Apple Silicon)
• UTM version: 4.7.4 (problem), 4.6.5 (working)
• Guest: Windows 11 ARM64 (VM created with UTM)
• Network mode: Shared
• App affected: iCloud for Windows (from Microsoft Store)

Could you please check if this is a regression in 4.7.4?

Thank you!