Featured Image Not Loading

I am experiencing exactly the same issue on my 2 wordpress sites after updating to the latest WP version 5.6.

I am using 2 different themes on these sites.

Hi!

It’s difficult to tell what the problem is, but possibly it is related to some scripts and theme / plugin compatibility.
Open a console to see if you have a mention of a particular problem there:

Using Your Browser to Diagnose JavaScript Errors

Also, there are a couple of plugins for help and solving common issues. find our more:
https://github.com/wpmarketingteam/WP5.6Marcomms/blob/master/Questions%20and%20Answers/6_jquery.md
If you will find a plugin / theme which has a script compatibility issue with the new version of WordPress, ask the author for a fix.

@silversunrise you don’t suppose to add your question to another one, this way all who are going through questions with no replies will not open it.

I have my site set to most everything updates automatically and I constantly check for updates to ensure I got the latest theme/plugin updates. The site uses X theme (Themeco) and is up to date. I ensured all plugins were up to date prior to posting here.

I did experience an issue with a plugin I use, but I will take that up their their support team.

The issue I posted here about dealt with adding a featured image to a post. We use the standard Gutenberg editor that WordPress is built around and the featured image is a part of that. What happens in version 5.6 when you click the button to add a featured image is the pop up box to add an image displays but is blank. Waiting several minutes, no changes. That’s not a theme or plugin issue, that’s a WordPress issue.

It is odd though that another site I have updated to version 5.6 (and uses the same theme) did not have this issue.

In the meantime, I reverted back to WP version 5.5 to temporarily solve the issue. I think WordPress jumped the gun with their jQuery library update and essentially shoved it down everyone’s throats without much time to react. That’s a major jump in library versions they are making.

All developers from official repositories had a notification about changes. The work on jQuery update started long before the last release in August 2020, so, no developer can say that he or she didn’t know, but sometimes it’s very difficult to foresee all possible issues especially in case of compatibility with other plugins.

There are a couple of plugins to developers and site owners in help.
https://github.com/wpmarketingteam/WP5.5/blob/main/Q%26A%20for%20non-technical%20users.md#section-8-jquery

Now, where you have reversed changes, you can try the jQuery update test plugin to see what the potential problems may be and notify authors of a theme/plugins.

Olga is ignoring the featured image issue… which is NOT A DARN PLUGIN!

Care to actually respond why a native WordPress feature in Word Press’ native editor will not work in version 5.6 or just throw more BS out there instead?

You know that I am a volunteer, right? ) We all are…

You need to open a console where the problem is and see what errors are present there.

Without tests and a patient itself, it is impossible to make a diagnosis…

That requires me to upgrade to version 5.6, which isn’t going to happen right now. I use the website having issues as a client portal and right now it’s not a good time to introduce that risk, which I already know is with the core WordPress code and not a plugin or a theme.

https://github.com/wpmarketingteam/WP5.5/blob/main/Q%26A%20for%20non-technical%20users.md#i-want-to-update-my-site-to-wordpress-55-how-can-i-be-sure-that-plugins-and-theme-on-my-site-are-compatible-with-the-working-version-of-the-script-library-jquery

I too, running the Resonar theme, have found that featured images are not showing after upgrade to 5.6. Following the advice to others I have tried disabling plugins, reinstalling the theme and installed the jquery migrate helper plugin, but they made no difference (and the plugin showed no issues) – but the featured images are still not showing in 5.6. Until someone can come up with any other ideas, I will have to stick with 5.5.3.

Glad it is not just me. Really feel the issue is with the core WP script itself (being that in the default WP editor, “featured image” is WP native and no a feature of a plugin or theme).

I reverted back to WP 5.5 and installed the jquery migrate helper plugin, which tells me everything is just fine – no errors.

I am confident others are having the issue and that WP will correct it in a future release. There’s a lot of chatter among the WP sympathizers of how “wonderfully awesome WP 5.6” and how “nothing is wrong” and if anything is that it’s the fault of a theme or plugin.

Don’t get me wrong, I like WordPress. It’s extremely powerful and versatile. Just don’t sit there and tell me a native feature to WP is the fault of a theme or plugin when that’s an outright lie.

They don’t seem to understand how a massive jquery library change can affect even small things I guess……

I had this same problem when I upgraded to 5.6 and bizarrely fixed it by adding a height and width of 100% to the containing element (a span).

It was a Firefox-only issue and it makes absolutely no sense to me why a WP core update would have any effect on a span element. The only explanation I can think of is maybe newer versions of WP contain some kind of new browser reset that default spans to 0x0 or something.

While I primarily use Firefox, others who have accounts on my website also had the same issue using a different browser (most use Chrome).

How would I set the height and width of a span? Not sure where I would go to set this for a featured image.

Mark, you would do it with CSS. My featured images were in a span with a class name of “zoom” so I just added the 2 lines for height and width like this:

.zoom {
height: 100%;
width: 100%;
}

• This reply was modified 3 years, 10 months ago by nate22.
• This reply was modified 3 years, 10 months ago by nate22.

Did you resolve this @neoweather?

Been having the same issues, lots of jquery errors in the console for the WP block editor. But I am not using the same themes / templates as they rest of you.

Different Themes have been tested and plugins disabled and this changes nothing so like you confident that its not an issue with either of these.

I restored back to 5.5 after experiencing this and now tried 5.6.1 hoping it would be resolved but the same issue.

Deprecated TinyMCE API call: <target>.onSetContent.add(..)
react-dom.min.js?ver=16.13.1:32 Uncaught TypeError: this._addClass is not a function
    at t.<computed>.<computed>._create (sortable.min.js?ver=1.12.1:9)
    at t.<computed>.<computed>._create (jquery-ui-1.10.4.custom.min.js?ver=1.4.0:6)
    at t.<computed>.<computed>._createWidget (jquery-ui-1.10.4.custom.min.js?ver=1.4.0:6)
    at new t.<computed>.<computed> (jquery-ui-1.10.4.custom.min.js?ver=1.4.0:6)
    at HTMLUListElement.<anonymous> (jquery-ui-1.10.4.custom.min.js?ver=1.4.0:6)
    at Function.each (load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.6.1:2)
    at s.fn.init.each (load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils&ver=5.6.1:2)
    at s.fn.init.t.fn.<computed> [as sortable] (jquery-ui-1.10.4.custom.min.js?ver=1.4.0:6)
    at initSortable (media-views.min.js?ver=5.6.1:2)
    at initialize (media-views.min.js?ver=5.6.1:2)

I fear there isn’t (yet) a resolution to this. See https://wordpress.com/forums/topic/resonar-featured-images-not-working/#post-3634312. And there seems to be a resounding silence by those who claim it has been resolved!