Publishing issue with the WP-FormAssembly plugin

Hello,

We have a problem with publishing the form on our website (WordPress via Elementor Pro Page Builder). We installed the WP-FormAssembly plugin and, following the instructions, we integrated the code [formassembly formid=1234 server=”https://XXXX.tfaforms.net”%5D. In “Elementor Preview” mode [web page not published], the form displays well and is functional (I did several tests that worked well). Unfortunately, when we publish the page, the form becomes non-functional (no fields can be clicked, hidden fields become visible)…By adding the iframe code [formassembly formid=1234 server=”https://XXX.tfaforms.net” iframe=1], as suggested by the plugin creator, the form becomes functional again, but we absolutely don’t want to use the iframe (for its scroll bar) for our donation form, as donors don’t like this and we’ll lose donations that way. Can you suggest how we can solve this problem and why we can’t integrate the form without the iframe as all works well in a non-published mode? What may be the issue? Many thanks!