Switching desktop occasionally causes app icons to flash in the task bar

[mid-kid]

What it says on the tin. When I press one of the autohotkey shortcuts (with the default script) to switch desktops, occasionally, an application icon in the taskbar will start flashing a notification, until I manually click it. It won't focus the proper window until I do so.
This makes this desktop switching method borderline unusable, unfortunately, but I'm not sure if it's something to do with my setup.

Windows 11 24H2, AutoHotkey version 2.0.19.
Script slightly modified, and attached.

VirtualDesktopAccessor.ahk.txt

[Ciantic]

I remember having those issues even in Windows 10.

Windows 11 has this thing:

If you for some reason like flashing taskbar buttons, you can try to activate a desktop just before switching a desktop, I remember this helped when I still used flashing taskbar buttons, which is very long time ago.