Multiple ajax calls returns empty span

If still an issue IS should be updated.

Just started seeing this on a site that was upgraded from (I think) 9.3.x to the latest 9.5.x. The error happens when someone is uploading an image through the media library widget on a media reference field on a node; the "Add media" button is clicked, the dialog opens, you click the "Select file" button, pick a file, after it finishes uploading the file the media library's grid of existing images disappears.

FWIW we also use DropzoneJS on this site, so it could also be a bug there ( https://www.drupal.org/project/issues/dropzonejs?categories=1&version=al... → ). It's made hard to track down because it only shows on our site's production environments, not the non-production environments which are running the same code.

DamienMcKenna, this is exactly the issue which we are experiencing. It's happening on production, we also use DropzoneJS. We use paragraphs and a media field on it.

This is happening for us as well. When user selects a file, upload process is starting, but then form refreshes and no file is shown as uploaded.

I can confirm that this issue is caused by DropzoneJS module since after I have disabled it, images are getting upload with no problems and no error message is shown.