HTML or line breaks are removed, extra spacing appears, or tags are stripped.
Content Formatting Breaks After Saving
Key Points: Your beautifully formatted content gets mangled after saving — paragraphs disappear, tags vanish, or spacing explodes.
You align a quote, embed a video, add a line break — and after updating the page, everything shifts or breaks. WordPress sometimes sanitizes a little too hard.
📉 Common Culprits
- wpautop() converting line breaks improperly
- Editor filters stripping inline styles or HTML tags
- Plugin or theme modifying
the_contentfilter - Improper use of block templates or reusable blocks
🛠️ How to Stabilize
- Use Code Editor view in Gutenberg to inspect raw HTML
- Add allowed tags via
kses_allowed_htmlfilter if needed - Temporarily switch themes to isolate formatting filters
- Use
remove_filter('the_content','wpautop')only if you fully control your theme
📎 Bonus
Don’t trust the visual preview blindly — always check HTML if formatting is critical, especially with nested elements or custom embeds.