Custom shortcode content into form

Hi, thank you for the plugin, again 😀

I did create a function in my child theme to randomly display a question for the textarea to be used as response.
but the last ] of the shortcode is closing the field in output and so it does not work.

I did add

function mycustom_wpcf7_form_elements( $form ) {
	$form = do_shortcode( $form );
	return $form;
}
add_filter( 'wpcf7_form_elements', 'mycustom_wpcf7_form_elements' );

then I created my normal shortcode [ab_testing_phrase], and added this to the form :

<label style="text-align:left;width:100%;">[textarea textarea-75 “[ab_testing_phrase]”]</label>
and I also tried this, but the syntax doesn't seems to work any more even without shortcode in.

<label style="text-align:left;width:100%;>
[textarea textarea-75] 
[ab_testing_phrase]
[/textarea]
</label>

if I display the [ab_testing_phrase] out of textarea I have it
if I add it to a text or hidden field, same, doesn’t work

thank you for your reponse 😀
best for 2025

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