OCI - Beacon should report multiple background if found so all are excluded from LazyLoad

[camilamadronero]

Describe the bug
OCI is not detecting multiple background images. It's only excluding one from the LazyLoad, while the others are still lazyloaded.

To Reproduce
Steps to reproduce the behavior:

1. Have a page with an element with multiple background images.
2. Run OCI and LazyLoad for CSS background images on it
3. See the resulting markup, with only one excluded image.
   Example:
   <div class="elementor-element elementor-element-1ac3863 e-con-full mobile-banner-link …" data-id="1ac3863" data-element_type="container" data-settings="{&quot;background_background&quot;:&quot;classic&quot;}" data-rocket-lazy-bg-91d08a9f-0ebc-4bfe-8173-55c8544ae776="excluded" data-rocket-lazy-bg-4bd7f57f-5e77-4641-976d-ab0f4b8e3ebf="loaded">

Expected behavior
Beacon should report multiple background if found so all are excluded from LazyLoad

Screenshots
Screenshot of the LCP element in the PageSpeed test: https://jmp.sh/Pr5ewoie

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Slack discussion: https://wp-media.slack.com/archives/C08N8J6VC/p1734451750055559?thread_ts=1733932259.948279&cid=C08N8J6VC
Site: https://zinius.lt/ - The old/affected LCP element has been replaced already
Old PageSpeed test - With the issue
Old LCP element:
<div class="elementor-element elementor-element-1ac3863 e-con-full mobile-banner-link …" data-id="1ac3863" data-element_type="container" data-settings="{&quot;background_background&quot;:&quot;classic&quot;}" data-rocket-lazy-bg-91d08a9f-0ebc-4bfe-8173-55c8544ae776="excluded" data-rocket-lazy-bg-4bd7f57f-5e77-4641-976d-ab0f4b8e3ebf="loaded">