On the page: id input string does not work

This block returns an empty value. Just like everyone else on this page. Everything works fine on other pages. I think this has something to do with the fact that the page is :id

https://preview.appmaster.io/places/info/id1?previewToken=KNGqPwp6JV6m3zC3Ts3c2U

URL parameters shouldn’t effect on business process for gettings elements’ input values. I use it in various projects it it works correctly.
Please check your process or give more details with steps to reproduce this problem

I have a custom business process on all forms that checks their completion. It works on other forms, but not here.

Preview of where it works (click on the bike or instructor selection buttons)

https://preview.appmaster.io/bike-rental?previewToken=KNGqPwp6JV6m3zC3Ts3c2U

Preview where it doesn’t work (click on the booking form below)

https://preview.appmaster.io/places/info/id1?previewToken=KNGqPwp6JV6m3zC3Ts3c2U

I have a custom business process on all forms that checks their completion. It works on other forms, but not here.

Preview of where it works (click on the bike or instructor selection buttons)

Preview where it doesn’t work (click on the booking form below)

I’ve been creating business processes every day for almost half a year now and I’m definitely 100% able to use input string data )

In this case, the “First Name” input (and almost everything on the page) lies in the “list” element and, accordingly, it is necessary to apply the indices of iterative elements to them. For this particular input the elementKey will be “4On81BZc4I7tPvBSf1C9Z:0”
Screenshot_6

Yes thanks a lot. Method with :0 helped me