Unable to save after WP 5.0 upgrade

Do you have any “security” plugins? Try turning them off. Some of them are overly paranoid and break things.

Same problem for me. All plugins disabled. Attempt to update an existing post produces “Updating failed” message. Attempt to add a new post gets “Publishing failed” message. Also, the “Categories” section has disappeared and am unable to specify a post Category. I have 5 WordPress blogs and updated 4 of the 5 before running into these problems. I believe these problems are occurring on only one of the 4 updated blogs.

I strongly recommend that others not update to WordPress 5.0 at this time as many people are experiencing the same problems.

Check your .htaccess file. Is there any mention of “wp-json” in there?

Disabled all plugins. Still unable to save updates. Still unable to save new draft post.

Interesting footnote: I *did* manage to successfully save existing draft last night on my first attempt. This save was in an existing open window from the previous day – almost as if it didn’t yet recognize that WP 5.0 had been deployed. Subsequent attempts to save then exhibited the ‘Updating failed’ pink line msg.

Possible clues. Of the 5 blogs I have updated:

Two are on the root domain (e.g. example.com) – these work fine.

Three are on subdomains (e.g. foo.example.com). Two of these three work fine, but one does not.

The one that does not work – let’s say xyz.example.com – is accessed via xyz.example.com/wp-admin to login. Everything seems to work EXCEPT cannot update or post new content.

This subdomain (and only this subdomain) is accessible via an “add on domain” such that the URL (let’s say) newexample.com goes to xyz.example.com

I use a .htaccess file rule to map http to https as follows

RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPres

The rewrite rule I did myself – I do not remember if the other part labeled #BEGIN WordPress was already there before I started as this was done quite some time ago.

I deleted the WP section from .htaccess and there is no change in the WP behavior.

• This reply was modified 6 years, 3 months ago by edwardm1.

If WordPress 5.0 gives “updating failed” or “publishing failed” message when editing/writing posts, install the Classic Editor plug in and use that to edit. I am now able to edit and post new updates on the blog which did not work with the new WP 5.0 – as long as I use the Classic Editor.

Since the Classic Editor plug in works, this suggests there is a problem in the new edit code.

• This reply was modified 6 years, 3 months ago by edwardm1.

Seeing as 4 of your 5 blogs are functional and only 1 is not, I think it indicates somethings odd on that blog.

Are you using the default theme?

No, I am not using the default theme. And I am not the only person experiencing this problem. I explained in a post, above, the use of an add-on subdomain at the ISP. However, I am accessing this blog without going through the add-on subdomain.

I now see an additional defect introduced with the WP 5.0 upgrade.

My blog was set to use the Day and Name permalink format. After upgrading to WP 5.0, the upgrade defaulted to the /?p=nnnn format.

I reselected the Day and Name format but when I click on a link – which WP is generating to the Day and Name format – the page is not found. All links on the blog are now broken.

I have tried other themes but have the same problems with those themes too.

Wordpress 5.0 has completely broken this web site.

Example:

Not Found

The requested URL /2016/03/22/denmark-fairy-tales was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

• This reply was modified 6 years, 3 months ago by edwardm1.

I downgraded to 4.9.8 but the permalink error is still occurring. I have no idea what WP 5 did my web site.

I have no idea how to fix this. Looks like WP 5 has murdered my 4 year old web site.

Responses here are the equivalent of “Have you powered off your computer and restarted?” as if no one believes any of us are having these issues.

The only thing I can think to do now is to export the content and rebuild the web site from scratch. Not sure its worth my time.

Hi all,

i had the same problem since friday. After activating debung console in firefox i’ve seen “mixed content” errors. Reason was
– starting domain as http
– updated since about 6 month to https
– not updating links in environment settings in wordpress (wordpress url and website url)
after updating both links to https error had gone.

Regards

Just closing my end of the loop . . .

I had Bluehost revert me back to their previous WP version (4.9.4?). After the update propagated, I am now able to again save and create new draft posts.

This newbie’s problems resolved for the time being, especially since I am not using any advanced features as yet.

I am facing the same problem tag and category option is missing but when I add a new post it was there but the post I am working on is still showing the same problem

experiencing the same problem. ‘updating failed’ when I tried to edit my blog post. Only occurs when I update to wordpress 5.0. Also CATEGORIES section is no more in edit section.

Same issue here. I am able to create new posts using the mobile app.

Same bloody problem, after 5.3 :@