Full List of Bugs after WordPress 4.3.1. Update

Issues and bugs with WordPress 4.3.1 updates

WordPress 4.3.1 UpdateFor those of you who have recently updated to WordPress 4.3.1 you may find that you are now facing some issues. This latest WordPress version seems to have caused many problems for website owners across the web when they have gone to update WordPress on their sites. WordPress like most other large software packages is not immune to issues and as each update is done there are often issues with incompatibility with different themes and plugins as well as other issues. This article will run through some of the latest reported WordPress 4.3.1 bugs and provide you with some solutions that you should try to help overcome the problems that you are facing.
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What issues are site owners facing on their WordPress 4.3.1 installation? The following sections will run through some of the different issues that people have faced and will provide you with the different solutions that you can run through to resolve those issues successfully to get your site back up and running.

Unable to access the WordPress dashboard or site stuck in maintenance mode

Unable to access wp-admin is actually a problem that can occur with any update in WordPress not just the latest WordPress update to 4.3.1. It is usually because the update has been interrupted at some point during the installation although there are some other issues that can cause it.

To fix this you need to take the following steps to manually install WordPress 4.3.1:

  • Download the WordPress Zip file from
  • Unzip it on your server
  • Locate the WordPress folder
  • Copy and paste the contents of this folder into the main folder of your site
  • You should not try to access your site’s dashboard
  • You can read more about performing a manual update on official website.

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Site URL has changed after the update

Sometimes after an update or any other changes you may find that your site url has changed, often with a random looking string appearing after the old URL for your homepage such as: .
To reset this problem you need to do the following: Locate your wp-config.php file and edit it to contain the following:


Obviously you will replace “htto://” in the above with your own website URL that you want corrected. You can find more information about changing your sites URL at WordPress Codex.

Various Errors: Parse Error, Fatal error, Syntax error, Unexpected string

There are many different errors that will result in an error messages that will come up on your screen when you try to do anything such as edit a post or even access the site. You may also get an error where your images will disappear after you have uploaded a new post. These different errors have a wide variety of different causes and it can be difficult to pinpoint exact causes in a post like this as there are just too many of them and they may be caused by the specific theme and plugins that you are using.  However to fix them you need to follow the following steps to find your solution:

Reinstall WordPressReload your WordPress installation: The first solution which may fix your problem is to just go to your dashboard and go to the “updates” tab. Select the “Re-install now” button to re-install the latest version of WordPress on to your site. If you cannot access your dashboard to do this then you need to follow the solution early in this article to install WordPress manually from official website. We’ve also prepared a step by step guide for you that you may read here – how to make full WordPress website backup.

Disable Caching PluginsFlush any Caching Plugins: If you are not sure if any of your plugins are caching plugins are caching just look at the names. If they include cache or caching then you will need to flush them. Open the settings page for each and you should see a tab for “content” within which you should find another button to clear or to flush. It’s a common bug that changes become invisible due to the caching plugins. To explore the topic deeper, read our recent article about all possible pros and cons of caching plugins.

Update PHP VersionUpgrade your PhP: Most hosts will be running the latest version of PHP but if you self host or your host is not using the latest version then this can cause compatibility issues. You can check the version of your PHP by using the Health Check plugin. If you do need to update your PHP each host has slightly different methods for updating but you can read more about it at WordPress Codex. You may also read here about PHP version and why it matters for your WordPress website.

Disable WordPress PluginsDisable all of your plugins: Sometimes problems are caused by a conflict with a plugin after an update. So disable ALL of your plugins and see if the problem goes away. If the problem goes away then you know that the problem is a plugin conflict. You then need to enable each plugin one at a time until you discover which plugin is causing the issue. You can then either leave it disabled or find an alternative version as there are many different plugins out there with similar functions. If you cannot disable your plugins directly from the dashboard then the following instructions will show you how to disable them. You may also read here about possible plugin conflict issues.

Twenty Fifteen WordPress ThemeUse the Twenty Fifteen theme: occasionally the problems are caused by conflicts with the theme that you are using. So switch to the default Twenty Fifteen theme to see if your problem goes away. If it does then you know that your solution is to get your theme updated or to switch to another theme that is compatible with WordPress 4.3.1. If you cannot access the dashboard to change your theme then you can remove all of the other theme folders via FTP so that the site is forced to use Twenty Fifteen as it is the only theme available.

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The above steps will tend to solve most of the error messages that you receive after an update to WordPress 4.3.1. Which order you use the above fixes in is unimportant as each addresses a different potential issue; they also require different levels of skill so it is important to start with something that you are comfortable in doing. Good luck, we hope that this solves your WordPress 4.3.1 issues and bugs.

Alternative for Fixing Bugs

Don’t have the time to deal with bugs after the WordPress 4.3.1. update? Overwhelmed with the amount of problems that came after the WordPress 4.3.1. update? A developer would be a great help in dealing with these pesky errors. There are a lot of developers available, however, React JS developers are specialists on solving problems, WordPress update issues included. Hiring React JS developers provides you the opportunity to not deal with researching the many “best ways to deal” with these update errors and testing if they work.

Mobilunity has dedicated React JS developers, who are skilled and experienced and who can help you solve these problems. The company offers outstaffing services and has a pool of dedicated React JS developers, who are ready to address these type of issues. Mobilunity lists out the reasons why you should hire React JS programmers and why they are suited the best to address any WordPress update problems that you may have.

Are you still facing issues after WordPress 4.3.1 update? Leave a comment about your bugs below!

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