.well-known directory served only from one host-header iis8.5

Hi All: Perplexing issue here. I have a directory structure like:

root

well-known

otherdirectory

and in IIS i have a website set up with the root pointing at root with multiple hostheaders:

web1.website.com :80

web2.website.com :80

I set up a virtual directory in iis:

.well-known --> well-known

If I place a file like "me.txt" in the well-known directory, I can view it in a browser using:

http:..web2.website.com/.well-known/me.txt

but I get a 404 error if I try to view the file at the URL:

http:..web1.website.com/.well-known/me.txt

why would it work for one binding but not the other?

There is no web.config in root, and ASP and parent-paths is enabled