Ah, I have found a guide for it on the official site. https://contactform7.com/2015/03/28/custom-validation/
Ah, this is couse of the Elementor free version… (Source: Source: https://www.youtube.com/watch?v=-fMpH_aKRcI)
One possible walkaround is to apply a custom css class to the header, and set it to “position:sticky” right in a global css. You can achieve this not only just with elementor, but with any global css plugin as well.
The exact same problem happens with me too.
It appears, that the problem happens if the Sticky effect is applied at start (Scroll Distance (px) is set to 0 for instance)
I am using Elementor 3.1.1, Elementor – Header, Footer & Block 1.5.6, and Sticky Header Effects for Elementor 1.4.3
