Passing Reactive Reference Values to the build not available anymore

When using Formatted hidden HTML, since few days ago, it is not anymore possible to use a "hack" like
return "<input name=\"value\" value=\"${ReactiveRefParam}\" class=\"setting-input\" type=\"text\">"

First of all div is added with class formattedHtml_+parameterId and nothing is rendered in it, therefore, variable cannot be used in build. This was working up to like month ago. If I put a simple String as return value, value is rendered in this up mentioned div, but the input field is missing.

Thanks