Cannot receive function keys F13-F22?

I am using the function SimConnect_MapInputEventToClientEvent_EX1 to map and recieve keyboard input, using the input strings defined here: SimConnect_MapInputEventToClientEvent_EX1.
Using these, I can receive key press/releases for F1-F12, but am not receiving key presses F13-F22.
This woeked fine in MSFS2020, although the valid input strings wee different then (e.g. “F13” in MSFS2020 is “VK_F13” in MSFS2024).

Should I report this as a bug?

Note that I do not actually have a keyboard with F13-F22 keys, I am testing this by sending the key actions (press/release) on a button press/release, which I then receive back. This works fine in MSFS2020 for all keys and in MSFS2024 for most keys except F13-F22 (and possible some others).

John

Hi. Thank you for reporting this i am interested in a way to get these unusual function keys too as i have mapped them to buttons of a gaming mouse.