Thank you page not updating

Cloned form from previous year and made changes to a few items, like the thank you page. The thank you page goes to a custom thank you page from last year, even though in the form editor it displays all of the changes I've made.

I cloned your form to test it and I was able to update the thank you page text without issue:

When I saved the changes, they remained after refreshing and editing the form.  I was also able to update the thank you page to a different URL.

There is a conditional thank you page, you may need to also remove the condition in order to correctly update the page: