This is strange behavior, and wanted to see if you've seen this before. We have our registration form as a subpage on our site, under 2 levels of parents. Whenever the form is accessed, it suddenly has no parent, and the page is accessible only at the root of the site (ie. moves from "www.domain.com/info/eventname/registration" to "www.domain.com/registration").
I tested that it's on form access by leaving it alone for several hours, and the page was where I left it. I then proceeded to order a ticket, and immediately, the page lost its parents. Is this a quirk of this plugin, or do you think something else may be interfering?