Why Does Your Custom Post Type Look Like a Broken Website From 1995?
You spend 3 hours building the perfect layout in WordPress.
Every block is lined up just right. The colors pop. The spacing is clean. You hit “Publish” feeling good about your work.
Then you check the live page.
And your heart sinks. No columns. No colors. No spacing. Just plain text stacked like a broken HTML file from 1995.
This is the “Ghost Layout” problem.
And if you’re reading this, you’ve probably already wasted hours trying to fix it.
The Painful Truth About What You’ve Already Tried
Let me guess what you did first.
You cleared your cache.
Nothing changed.
You checked if the_content() was in your template.
It was there.
You made sure show_in_rest was set to true.
Still broken.
You Googled “Gutenberg styles not loading CPT” and found 47 different solutions.
None of them worked.
You’re starting to wonder if you need to rebuild everything from scratch.
Here’s the good news: You don’t.
There’s a 1-line fix that solves this in under 60 seconds.
The Real Villain: WordPress Got “Too Smart” For Your Own Good
Here’s what’s actually happening.
WordPress 5.8 added a new performance feature.
It sounds great on paper. Instead of loading ALL the block styles on every page, WordPress now tries to be smart. It scans your page content.
It looks for which blocks you’re using. Then it only loads the CSS for those specific blocks.
This is supposed to make your site faster.
But there’s a catch.
The scanning engine that looks for blocks? It often completely misses content inside Custom Post Types. So WordPress looks at your CPT page and thinks: “I don’t see any blocks here.” And it loads ZERO block styles. That’s why your beautiful Gutenberg layout looks like raw HTML.
The CSS simply never gets loaded.
The 1-Line Fix That Changes Everything
Open your functions.php file.
Add this one line anywhere in the file:
add_filter( 'should_load_separate_core_block_assets', '__return_false' );
That’s it. Save the file. Refresh your page. Your layout is back.
What does this code actually do?
It tells WordPress: “Stop trying to be smart about which block styles to load.”
“Just load the full block library every single time.”
Your page gets styled correctly. Every block shows up the way you designed it. Problem solved in 60 seconds.
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The Small Trade-Off (That’s Worth It)
Let’s be honest about what this fix does.
It adds a little extra CSS to your page load. Maybe 20-30kb. But here’s the reality check:
A fast site that looks broken is still a broken site.
Your users don’t care if your page loads in 1.2 seconds instead of 1.1 seconds. They DO care if your layout is smashed together with no spacing. They DO care if your carefully designed columns are stacked in one ugly line.
Speed matters. But a working site matters more. This fix ensures your site actually works.
How to Know It’s Working
Want proof that the fix worked? Right-click anywhere on your page.
- Select “View Page Source” (or press Ctrl + U).
- Look in the
<head>section. - You should now see a line that includes
wp-block-library-css. - That’s the CSS file that makes your blocks look good.
If it’s there, you’re golden.
Before the fix, that line was missing.
After the fix, it’s loaded on every page. Your layouts work again. Simple as that.
The “Hard Mode” Fix (If You Want to Get Fancy)
Maybe you only want this fix on specific Custom Post Types.
Maybe you want to keep things lean on your regular posts and pages.
Here’s how to target just one CPT:
add_filter( 'should_load_separate_core_block_assets', function( $load_separate_assets ) {
if ( is_singular( 'your_cpt_slug' ) ) {
return false;
}
return $load_separate_assets;
});
Replace 'your_cpt_slug' with your actual post type name.
Now the full block library only loads on that specific CPT.
Everything else stays optimized.
This gives you the best of both worlds.
Your CPT layouts work perfectly. Your other pages stay lean and fast. Need help setting up Custom Post Types that actually work right from day one?
Don’t Let “Optimization” Break Your Site
Here’s the lesson from all this.
WordPress tried to make your site faster. That’s good. But the system they built has a blind spot. And that blind spot breaks Custom Post Types.
Performance matters. But you know what matters more? A site that looks the way you designed it. A site that doesn’t make your clients ask “Why does the page look broken?” A site that doesn’t waste 4 hours of your day trying to figure out why CSS isn’t loading. This 1-line fix gives you back control. It ensures your Gutenberg layouts work everywhere.
Not just in the editor.
Not just on regular posts.
Everywhere.
Your Next Step
Add that one line to your functions.php file right now.
It takes 60 seconds.
Then test your CPT pages.
Watch your layouts snap back into place.
This is what it feels like when WordPress actually works the way it should.
And if you’re tired of fighting WordPress problems like this every week? If you want someone else to handle the technical headaches while you focus on building your business? We fix WordPress problems fast so you can get back to what matters. Stop letting broken layouts waste your time. Fix it now with one line of code. Then get back to building something great.
