filmmaker3000

@kumigy You DID IT!!!! That’s the answer! I can reproduce this. If the folder of the theme has ONLY numbers, it breaks the theme. If you add letters before OR after, this fixes the issue. THANK YOU SO MUCH!!!

@joyously This issue has been solved. Can you try to reproduce it? If the theme folder is named 4 numbers (1234), it breaks it. If you add characters before or after (I added 1234_realtheme and the1234 and both worked. I will add a comment to your bug report.

• This reply was modified 3 years, 8 months ago by filmmaker3000.

@joyously Thank you!

@acornsdev Yeah, if I change the stylesheet, the theme breaks. If I change the theme the featured image functionality works, which means something is definitely wrong with my theme. But I can’t figure out for the life of me what it is!

Thanks for your help and advice!

Thanks @acornsdev for the help. It is not a parent / child theme. Running locally breaks it as well.

I did notice that when I go to themes, the theme that has this issue does not say “Activated” and then the customize button. It just has the Activate button. For some reason I cannot get the theme to show that it is activated. The theme works when I activate it, but in WordPress it doesn’t have the black highlight that shows it is activated in the Themes.

I think this might be a clue. I’m still trying to figure it out. Thanks!

Hi Acornsdev,

I looked through and I did not see anything weird like that on mine. For me, the site theme starts with numbers 1234 Website. After reading your post, I thought it could be the numbers, so I renamed it to The 1234 Website and that didn’t work. One thing to note, I have an older theme installed with the same name, and that one works fine. That old theme, for some reason, is getting the featured image option and does not have that theme_supports error from the original post.

Still struggling to solve this one! Thanks for your post though!

Thanks Julien,

Unfortunately, it is still not working for me. I have an index.php and I still do not see the featured image section. I tried renaming the index.php to front-page.php, and adding a separate index.php, but it still didn’t work.

Thanks omarbgno, but my theme has an index.php file. I wonder if there is something in the php file that is causing it.

So using the Health Checker, I found that Yoast is causing that wp.data.select( 'core/editor' ).getBlocks is deprecated. Please use wp.data.select( 'core/block-editor' ).getBlocks instead. But that doesnt cause the removing the featured image.

Thanks for your reply! I upgraded my jquery UI to 1.12.1 and it didn’t work. But I did get a new message in the console:

wp.data.select( ‘core/editor’ ).getBlocksis deprecated. Please usewp.data.select( ‘core/block-editor’ ).getBlocks` instead.

I searched and there are some core/editor in my wp-includes folder in some files, but they were updated on the 9th when I upgraded to 5.7, so I’m not sure what to do.

Edit: I am wondering if it might have to do with Advanced Custom Fields.

• This reply was modified 3 years, 8 months ago by filmmaker3000.

I just tried the health check plugin joy recommended, and turned on troubleshooting mode. The Featured Image was there. So there must be some sort of plugin that is breaking it. Not sure which one though.

Edit: Another update, I went through and found out it was something to do with my theme, not any plugins. Health check is awesome, thanks Joy! I went in, disabled everything, and then manually enabled all plugins and tried themes.

I’m still not sure what exactly… I only know my theme is doing something weird.

• This reply was modified 3 years, 8 months ago by filmmaker3000.
• This reply was modified 3 years, 8 months ago by filmmaker3000.

I am getting the same error:
Uncaught (in promise) TypeError: Cannot read property ‘theme_supports’ of undefined

at core-data.min.js?ver=cae70cc4927f8b371fa13262d47b23e0:2
at tryCatch (wp-polyfill.min.js?ver=7.4.4:1)
at Generator.invoke [as _invoke] (wp-polyfill.min.js?ver=7.4.4:1)
at Generator.t.<computed> [as next] (wp-polyfill.min.js?ver=7.4.4:1)
at redux-routine.min.js?ver=284288e957394d2097c6fbe95625e2fb:2

Seems like it is wordpress core files. But if replacing them doesnt fix it, what is the cause?

This is with the migrate code ON. (JQMIGRATE: Migrate is installed, version 3.3.2)

I think I may have to play around with some things. I will report back if I discover anything.

• This reply was modified 3 years, 8 months ago by filmmaker3000.

I have the same issue. Try removing &post_format=standard. It worked for me. Now I have to try and figure out how to remove it automatically…