Post saving/publishing – error message

I disabled each of my plug ins in turn and it still happened.

Also try:
– Flushing any caching plugins you might be running, as well as server and/or browser caches. Not just your browser, but any op cache or content network cache as well such as Cloudflare. If you are using SiteLock, manage your caching there.
– Flushing Managed host caches. Managed WP hosting often has special caches. If your host has a “Purge Varnish” or “Flush Memcache” tool, try that. You can ask your provider to flush memcache and Varnish for you if necessary.
– Troubleshooting with your browser. Your browser can help you identify JavaScript issues or conflicts and this article can assist you in doing that diagnosis. This could help identify Visual Editor issues as well.
– switching to the unedited default Theme (Twenty Seventeen.) for a moment using the WP dashboard to rule out any theme-specific issue (theme functions can interfere like plugins).
– If all fails, try MANUALLY updating. Download a fresh copy of the WordPress .zip file to your computer, unzip it, and use that to copy up all files and folders EXCEPT the wp-config.php file and the /wp-content/ directory. You may need to delete the old wp-admin and wp-includes folders and files on your server before uploading the new ones. Please read the Manual Update directions first.

Hi t-p, thanks so much for your time and suggestions.

Also try:
– Flushing any caching plugins you might be running, as well as server and/or browser caches. Not just your browser, but any op cache or content network cache as well such as Cloudflare. If you are using SiteLock, manage your caching there.

I cleared my browser cache, but I don’t run any caching plugins (that I know).

– Flushing Managed host caches. Managed WP hosting often has special caches. If your host has a “Purge Varnish” or “Flush Memcache” tool, try that. You can ask your provider to flush memcache and Varnish for you if necessary.

Sorry, I don’t really understand this! I am not sure if my host has those tools or not.

– Troubleshooting with your browser. Your browser can help you identify JavaScript issues or conflicts and this article can assist you in doing that diagnosis. This could help identify Visual Editor issues as well.

Following that article led me to these errors on the draft post page at the stage before I click save again: https://imgur.com/a/U1MxI The last one seems to be repeating.

I’ve not yet tried your last two solutions yet, just in case those errors in the image linked above provide clues.

Bizarrely, I’ve been able to create new test drafts fine, so I am not sure if it is a problem with this particular draft I am writing (it contains linked embedded tweets and one image).

Thanks again

• This reply was modified 7 years, 3 months ago by Simon Varwell.

Sorry to bump this, but just before I try the final two suggestions, any other clues or ideas?

It seems that some small drafts can be saved, but anything long can’t, and it works the same on a smartphone web browser, other web browsers on my desktop and with the post copied, deleted and re-pasted. Very odd…

I had some help from my server admin, who solved the problem by doing the following. These are his words – I don’t understand them, but hopefully they make sense to anyone who lands here having searched for similar difficulties:

…I ran in to some other WP issues on a site of my own (getting a new WP install up and tweaked) which were fixed by having the web server use PHP7.1 rather than the default version 5.6 – so I’ve made the same change for your site too. This can have the effect of the same scripts needing less memory to run, potentially avoiding out-of-memory errors.

There is also a “web application firewall” built in to the server software, which tries to keep bad people away from trying bad things with our websites – but sometimes it can be over-protective and break legitimate things. So I’ve switched that off for your site too.