Cubase Type in key issue(page up , page down)

I’m using Cubase 12 on Windows 11. After updating Windows, my previous Key Commands setup was reset, so I’m trying to reassign everything again.
Previously, I had assigned PgDn to the Forward command and PgUp to the Rewind command. However, when I try to reassign these keys now, Cubase doesn’t recognize the PgUp/PgDn keys in the “Type In Key” field.

The keys themselves are not faulty — they work fine inside Cubase (for example, for scrolling or navigation), but only the “Type In Key” input field doesn’t detect them.

Is there any way to fix this issue?