cookie from main domain to subdomain

Goal is to have a visitor redirected from the homepage (mysite.com) to page on a subdomain if a cookie is present on mysite.com.

I am currently using:

Source URL: ^https?:\/\/(?:[^\/]+\.)?mysite\.com(?:\/(?:\?.*)?)?$
Match: URL and Cookie
Cookie Value (using regex) is: .*
When Matched: Redirect to URL 307
Unmatched Target: -blank-
Matched Target: https://staging.mysite.com/select

Results when testing with Redirection:
HTTP 301 moved permanently – This and all future requests should be directed to the given URI
URL is not being redirected with Redirection
Target: https://www.fansmack.com/

I am unable to find a solution on the support site or in this forum.

Do you see anything that is causing this not to work as expected?