on my installation the absolute path fails even too. On 4.5.4 this works on 4.5.5. it does not fix the issue.
i tested with url(“https://domain/wp-content/…) with (https://domain/wp-content/…) with (//wp-content/…) etc. pp. always doubling the domain – as you described above.

The place to look for is : asset-manager.class.php – the new lines in: public function rel_to_abs_url($content, $path)
espacialliy on the public function _url_callback( $match )

a temp-fix for that will be good.
all iconlists except the one with left icons are not correct styled. (Custom font size , custom colors etc.)

First of all if you only like to influence the subtext style why don’t you change your css rules to h1 ?
______
i thought you will do it because of seo reasons than have a look if your child-theme functions.php file got an entry like this:
search for avf_logo_subtext
this code is only an example code – i use it if i want to place wordpress site name and wordpress description to my logo

If you got something like that – you can change here your h1 to h2 ( but don’t forget to do it twice – opening and closing tag)

add_filter('avf_logo_subtext', 'kriesi_logo_addition');
function kriesi_logo_addition($sub)
{
  $sub .= "<h1 class='logo-title'>";
  $sub .= get_bloginfo( 'name', 'display' );
  $sub .= "</h1>";
  $sub .= "<h2 class='logo-title logo-subtitle'>";
  $sub .= get_bloginfo( 'description', 'display' );
  $sub .= "</h2>";
  return $sub;
}

you existing code may look like this:

add_filter('avf_logo_subtext', 'kriesi_logo_addition');
function kriesi_logo_addition($sub)
{
  $sub .= "<h1>Jonathan F. Anderson, LPC-s</h1>";
  $sub .= "<h1>Gate Healing, PLLC</h1>";
  return $sub;
}

Bitte erst lesen dann Code probieren:
Bei WordPress deutsch gibt es unter Dashboard – Einstellungen – Allgemein die “Sprache der Webseite”
Hierbei gibt es wohl nur im deutschen die Unterscheidung zwischen informeller und formeller Anrede: Deutsch und Deutsch (Sie)
Wenn du dann Deutsch (Sie ) gewählt hast und die Übersetzer Ihr Handwerk verstanden haben, dann wird Sich die Frage erübrigen.
Falls nein, dann müssen wir in die Sprachfiles gehen und es dort ändern.

Bzw, wenn es nicht allzuviele Änderungen sind gibt es auch quick and dirty Lösungen.
zB das hier in die child-theme functions.php:

function my_text_strings( $translated_text, $text, $domain ){
switch ( $translated_text ){
    case 'das könnte dich auch interessieren':  $translated_text = __( 'das könnte Sie auch interessieren', $domain );
    break;
  }
  return $translated_text;
}
add_filter('gettext', 'my_text_strings', 20, 3);

next question from you:

clip text only works on firefox with background-attachment : scroll.
but on chrome and safari they will do the trick with : fixed
so we need a fallback for firefox
see same example page above.

take a color-section give it a custom class like: cliptext
put in it a heading alb element ( or text-block Alb)

.cliptext .av-special-heading-tag  {
  background :url('https://link-to-your-image');
  display: block;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;

  color: #000;
  font-size: 200px !important;
  font-weight: 900;
  line-height: 1.5em;
  letter-spacing: .1em;
  text-rendering: optimizeLegibility;

  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-fill-color: transparent;

  -webkit-filter: drop-shadow(2px 2px 5px #333);
  filter: drop-shadow(2px 2px 5px #333);
}

@supports(-moz-appearance:none){
  .cliptext .av-special-heading-tag {background-attachment:inherit}
}

Everything is in the code – just look:

here is the layout – working with codeblock element ( Deactivate schema.org markup ) means no additional containers.

what is the codeblock element input:
and the surrounding color-section got custom-class: fixed-heading

<div class="mask">
	<div class="mask__content">
		<div class="container is-full">
			<div class="teaser is-centered">
				<div class="teaser__title">
					<h2 class="is-h2">Your Text</h2>
					<h2 class="is-h1">A next line</h2>
				</div>
			</div>
		</div>
	</div>
</div>

your input for quick css:

.mask {
	height:400px;
}

@supports ((-webkit-clip-path:polygon(0 -1px,0 calc(100% + 1px),100% calc(100% + 1px),100% -1px)) or (clip-path:polygon(0 -1px,0 calc(100% + 1px),100% calc(100% + 1px),100% -1px))) 
{
	.mask {
		-webkit-clip-path:polygon(0 -1px,0 calc(100% + 1px),100% calc(100% + 1px),100% -1px);
		clip-path:polygon(0 -1px,0 calc(100% + 1px),100% calc(100% + 1px),100% -1px);
		clip:rect(0,auto,auto,0)
	}
	body:not(.is-noscroll) .mask {
		position:relative
	}

	.mask .mask__content {
		position:fixed
	}

	.mask .mask__content {
		top:50vh
	}
}

.mask__content {
	position:absolute;
	width:100%;
	left:0;
	transform:translateY(-50%);
	z-index:20;
	top:50%
}

.fixed-heading .content {
    padding: 0 !important;
}

h2.is-h2 {
    text-align: center !important;
    font-size: 36px;
    font-weight: normal;
    text-transform: none !important;
    line-height: 60px;
}

if you like to style the h2 change the class in the code block element in is-h1 or something else

the color-section can have background as you like. And: “no minimum height” ( is given by mask height )

See example page: https://webers-testseite.de/schrift-und-parallax/

can confirm that- for my edited ALB Elements i just want to update – because of new code in 4.5.5
but right positioning of list elements ( and small lists ) do not take custom size

guess it is the lines before line 540 ;)

these lines are missing:

$this->icon_html_styling = '';
$this->title_styling = '';
$this->content_styling = '';
$this->content_class = '';
$this->title_class = '';
$this->iconlist_styling = '';

the way could be to enable nested shortcodes on wordpress.
The trick will be a do_shortcode

Maybe a mod could tell us to activate the nested shortcodes like in the whole enfold usage ;)

i would use no surrounding containers – even no color-section for it and i would use the following code block input – because it uses directly the allmost existing calculations:
do not mark any options in codeblock element.

<div class="avia-video avia-video-16-9" itemprop="video" itemtype="https://schema.org/VideoObject">
	<div class="avia-iframe-wrap">
		<iframe …. >  </iframe>
	</div>
</div>

give a custom Class to code block element – f.e. : fullvideo

put this to your child-theme functions.php file:

function youtube_full_width(){
?>
<script>
(function($){
   $('.fullvideo').closest('.content').css( 'padding' , '0px' );
   $('.fullvideo').closest('.container').css({ "max-width": "100%", "width" : "100%", "padding": "0" });
   $('.fullvideo .avia-video').css('margin-bottom', '0px' );
   $('.fullvideo .avia-iframe-wrap').css('margin-bottom', '0px' );
})(jQuery);
</script>
<?php
}
add_action('wp_footer', 'youtube_full_width');

see here: https://webers-testseite.de/youtube-shortcode-for-enfold/

password : Enfold

can you give me a link to that page?
it depends on how you have placed the video.

kommt das häufig bei dir vor?
ich frage weil man natürlich schon über eine benutzerdefinierte Klasse dann dem Anchor title und alt hinzufügen kann.
Nur wenn du das bei zig Spalten machen musst, ist es ne menge Handarbeit.

Du vergibst dann ein custom class zB: titletag
über child-theme functions.php:

function custom_link_attriubtes(){
?>
<script>
(function($){
  $('.flex_column.titletag a').attr({ title:"custom_title", alt:"custom_alt" });
})(jQuery);
</script>
<?php
}
add_action('wp_footer', 'custom_link_attriubtes');

Das musst du dann für jede klasse / column machen.
Diese Zeile: $('.flex_column.titletag a').attr({ title:"custom_title", alt:"custom_alt" });
kannst Du dann immer wieder neu anfügen für die einzelnen Columns.

what happend if your links go to a https link ( you can have inserted both variants – but take the https one please)

it that does not bring any success you can try this here (and play a bit what you want) in child-theme functions.php

What does the code do: every link that do not fit with your domain url (internal links) get the target blank ( you can get rid of that line) and will get the rel you like.

PS : i would advice you to use noreferrer on that:
read here: https://developers.google.com/web/tools/lighthouse/audits/noopener

rel=”noreferrer” attribute has the same effect, but also prevents the Referer header from being sent to the new page. See Link type “noreferrer”.

to avoid those things from internal links ( your domain) and from e-mail (and maybe encrpyted one) and telephone links – this could be the code to use:

add_action('wp_footer', 'open_external_links_in_newtab');
function open_external_links_in_newtab(){
?>
<script type="text/javascript">
(function($) {
  var domainUrl = window.location.origin;
  $('a').not('a[href*="'+ domainUrl +'"], a[href*="mailto:"], a[href*="tel:"], a[href*="javascript:;"] ').attr({
    'target':'_blank',
    'rel': 'nofollow noreferrer',
  })
})(jQuery);
</script>
<?php
}

on that demo overview of Enfold – is there a page that fits your needs?
https://kriesi.at/themes/enfold-overview/
Or do you have any example page that we can imagine what you mean by that ( no standard expression ) “lead page”