Leroy12

I found the issue ! I had a space after “?>” at the end of functions.php. The problem and solution is explained at ajax – WordPress: custom field display twice – WordPress Development Stack Exchange

Hi @whiteshadow01 thanks for your answer. I’m not using any 3rd party plugin. The metabox needs to be enabled via “Gutenberg / Preferences / Custom Fields” This is the “custom fields” metabox I’m referring to:

Thanks

Thanks James.

I could indeed export the finished file in Photoshop, but that would really slow down my workflow.

Instead I’ve added the following piece of code in functions.php, so that when I copy/paste a PNG, it is converted into JPG.

add_filter('wp_handle_upload_prefilter', 'convert_pngs_to_jpgs');

function convert_pngs_to_jpgs($file) {
    $filename = $file['name'];
    $extension = pathinfo($filename, PATHINFO_EXTENSION);

    if (!in_array($extension, ['png'])) {
        return $file;
    }

    $image = imagecreatefrompng($file['tmp_name']);
    $bg = imagecreatetruecolor(imagesx($image), imagesy($image));
    imagefill($bg, 0, 0, imagecolorallocate($bg, 255, 255, 255));
    imagealphablending($bg, TRUE);
    imagecopy($bg, $image, 0, 0, 0, 0, imagesx($image), imagesy($image));
    imagedestroy($image);
    imagejpeg($bg, $file['tmp_name'], 100);
    imagedestroy($bg);

    $file['name'] = preg_replace('/\.[^.]+$/', '.jpg', $filename);
    return $file;
}	 

Thanks for your fast answer!

When I reload the “convert existing PNGs” tab, I don’t see many PNG images that are on my hard drive, and referenced in the media library, hence my question.

I wondered if there was some tables or metadata or temp data used by your plugin, that I could delete, to make sure the plugin does reevaluate the entire media library.

Thanks George. That does work, but I want to embed those HTML snippets into some text I’m writing in Paragraph or Quote blocks. Thanks.

Thanks Jorge !

Thanks @sterndata for your pointer. I would say my use case is simpler (not using a custom taxonomy, but the default “post_tags” one); and I’m not seeing any 400 issues as mentioned in the github page.

I have anyhow created a bug request at https://github.com/WordPress/gutenberg/issues/19388

Worth adding : I have manually added a tag to some instances of my custom post types, and I can retrieve them in my theme. So it really seems like a UI / Gutenberg related issue.

Hi @bcworkz
Thanks very much for the tip regarding flush_rewrite_rules() ! Something I didn’t know !

Regarding Tags : in the list of supported Options for my custom post types, Tags are not available 🙁

I’m using WordPress 5.1.1

Is there anything that I can check / alter in the WP database, that defines what taxonomies are available for a custom post types ?

Thanks