Zapier/Dropbox Configuration UI

I am trying to configure what I would imagine to be a fairly common Zapier natural language Zap. I want to be able to save a Chat to Dropbox.

For reasons unclear to me the option to select a destination Dropbox folder is grayed out.

If I let AI choose, it chooses different folders when saving the exact same chat so it clearly would be preferable for me to designate the Dropbox destination folder. Has anyone been able to achieve that?