Well when you said that /Library worked for you, I tried it myself and it didn’t. Which made me dive a little deeper.
I tried the very simple
answer file in folder “/Library”
and that worked for me, too. It seems to be a problem with parameters.
If I do
answer file of type “txt” or “text” or “rtf” in folder “/Library”
it doesn’t work but if I do
answer file in folder “/Library” of type “txt” or “text” or “rtf”
it does. So yeah, a bug, but not in the partial path stuff. (I tried “~/” again and it works now with the right parameter order.)
Also, in my initial example, I realize I placed a text string thinking that it’d be a prompt in the choose file dialog. That parameter also causes problems and isn’t actually used (although that’s a FEATURE REQUEST, hint, hint).