NO BUG: Bug in 'Custom alt text' when using an ACF dynamic text field and a Nestable Slider

Browser: Chrome Version 145.0.7632.160 (Official Build) (64-bit)
OS: Windows 11
URL: Log In ‹ Try Bricks – ta4dc3de — WordPress

When using a an ACF text field to dynamically generate ‘Custom alt test’ on the image element of a nestable slider (see slider on given URL) , the text is not displayed when the html is inspected.

The same custom field when used as the Custom alt text on a standalone image element that is not part of a slider, works as expected ( see the image at the top on the given URL).

Hand typing plain text into the box for Custom alt text works for the nestable Slider. Also, selecting a wordpress dynamic field such as Post Title works as well.

It’s just ACF dynamic fileds that are not working when used in conjunction with a nestable slider

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Hi,
Thanks so much for your report!

Matej already had access to your installation, so I was able to take a look at your setup right away. Your issue is not a bug.

Your slider query retrieves images from the media library.
Your ACF alt_text field is assigned to the “pages” post type—not “attachments”.

Therefore, the alt_text is empty, since the images do not use this custom field at all.

Why don’t you just enter the alt text in the designated field in the media library?

Best regards,
timmse