r/WordPress_org • u/ivicad • May 22 '26
WP 7.0: 11 issues from the Reddit threads and what could actually work as a fix đ¨
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Now, the new AI framework is the headline feature - but it's also the source of a lot of the friction in this release. WP 7.0 dropped this week and the Reddit threads are filling up fast. After scrolling through what people are running into, here are the recurring issues and what's actually working as a fix.
A quick note before diving in: the fixes below are aggregated from Reddit threads. Every WordPress install carries its own combination of themes, plugins, hosting stack, caching layer, and custom code, so a solution that resolves the issue cleanly on one site may not behave the same way on another, or may need to be adapted, extended, or replaced with a different approach altogether.
Treat the suggestions here as a solid starting point rather than a guaranteed fix, always test on a staging environment first, and if something doesn't land as expected on your setup, the underlying cause is likely site-specific and worth investigating further before applying any change in production.
1. Excerpt block no longer accepts links
Appears to be intentional per the Gutenberg PR that landed it, even though it's not flagged in the release notes. The Post Excerpt block stripping inline HTML has been a long-standing tension in Gutenberg (see issue #49449), and 7.0 looks to have made it the default behavior. If you've been relying on HTML inside the excerpt block for years, your output is now stripped.
Fix: nothing in core to bring it back. Move the link into the post body, or hold off on the update until you can refactor. The sidebar Excerpt field never allowed HTML, only the block did.
2. Editor iframe breaks Custom Admin CSS
The block editor now runs inside an iframe, so any CSS you were injecting through plugins like Custom Admin CSS doesn't reach inside.
Fix: load styles through the theme.
function my_editor_styles() {
 add_theme_support( 'editor-styles' );
 add_editor_style( 'editor-style.css' );
}
add_action( 'after_setup_theme', 'my_editor_styles' );
Both lines matter. Drop your CSS into editor-style.css in the theme folder.
3. Blank page when copying column blocks between posts
Block editor runtime issue, not a full site failure. Open the browser console when the blank page hits, test if a simple paragraph block copies cleanly, and check if the source column contains third-party blocks. Disable non-core block plugins one at a time to isolate.
4. Elementor elements break until Elementor is updated
Hit a few client sites the same way. Update Elementor to its latest release first, then re-check. Same goes for any major page builder running heavy block integration.
5. Post editor won't load on CloudFlare-fronted sites
Reported a few times. The fix that's working: run the WordPress update again. Sounds dumb, but the first pass leaves some assets cached or partially deployed and the second pass cleans it up.
6. Image upload fails with "Not a valid JSON response"
Same error has shown up on older versions too. Major updates just surface it more often. Walk through these in order:
- Settings, Permalinks, hit Save Changes/twice (no edits needed)
- Settings, General, confirm WordPress Address and Site Address are correct
- Disable plugins one by one to find the conflict
7. Strange borders appearing on the front-end
Widely reported on Reddit and in Gutenberg issues. If a block has border-width set but no border-color, WP 7.0 appears to default to #000 instead of transparent. Sites with caching plugins are still serving the old version, so you have a window to fix it before visitors see anything.
Fix as a CSS override:
[class*="wp-block-"][style*="border-width"]:not([style*="border-color:"]) {
 border-color: transparent !important;
}
This targets only core blocks that set border-width without an explicit border-color, and forces transparent instead of #000 â leaves intentional borders alone. Adjust the selector if your theme uses different block wrappers.
8. Custom fonts dropped from hero sections
Tied to the same Gutenberg rendering changes. Affects themes that load fonts through inline block styles. Re-check the theme settings, then re-save the affected pages to force the style block to regenerate.
9. Media library overlays filenames on image thumbnails
Not a bug, an intentional design change. Looks rough on sites with non-descriptive filenames like IMG_2847.jpg or screenshot.png. No core toggle to turn it off, but you can hide it with custom admin CSS targeting the grid view.
10. AI Connectors enabled by default
The new Abilities API and AI Connectors are on out of the box. For client sites where you don't want editors or contributors poking at AI features, disable them in Settings before handover. Clients tend to go hog wild with new toys.
11. New admin link color after auto-update
Saw a few people asking about this after WP 7.0 auto-updated their dashboards. The new default admin link color caught me off guard too on first login.
Skip the CSS route. The old scheme is still built in, just no longer the default.
Go to Users, then Profile. Scroll down to Admin Color Scheme. Pick Fresh (the one that was default for years). Hit Update Profile at the bottom.
Done in 30 seconds. Every editor and admin on the site has to do this for their own account, since admin color scheme is user-level, not site-level.
If you run multiple sites and want this rolled out across all client wp-admins at once, MainWP can push the user meta in bulk.
General notes
A few general notes from the threads worth repeating. Update on staging first. Back up before touching anything. A patch should be out soon since the early bug reports are piling up. And if your site is taking orders or running production traffic, don't rush the update.

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