Thank you for contacting us about background images not displaying correctly. Unfortunately, this is a known issue at this time. There will hopefully be a fix rolling out soon though we do not have a specific time frame. You can still add these sections known as blocks back to your page. This is covered in our guide on how to use the block library.
I am using Lynx theme and my header image also has disappeared. Is there a work around until you resolve the issue
Hello. Have you tried the method above?
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