I have seen bug reports about fonts with the #1 ..etc suffix attached. Maybe reverting to the system default when clicked. Seems to be a combination of a poorly made font + the fontconfig library lagging behind Window changes.
You could try looking in C:\Windows\WinSxS although AFAIK the fonts there are all system fonts, but who knows.
example: https://i.imgur.com/AYv5L9y.jpg
That Farm House font? Commercial? All I could find was a $13 download so not able to check. As Blighty wrote, the internal font name(s) usually different to the file name.
Otherwise, are you using some sort of font provision service ? These seem to use their own cache.
You could try looking in C:\Windows\WinSxS although AFAIK the fonts there are all system fonts, but who knows.
example: https://i.imgur.com/AYv5L9y.jpg
That Farm House font? Commercial? All I could find was a $13 download so not able to check. As Blighty wrote, the internal font name(s) usually different to the file name.
Otherwise, are you using some sort of font provision service ? These seem to use their own cache.