Media directories editor: Embed media widget: A thumbnail does not work

Result with a patch.

@Ruslan Piskarov, can you please share the steps to reproduce this?

@Sandeep_k, you can just open source code and you will see this Drupal\Core\Media is undefined.
We use media_directories together with embed module and have a custom icon "Insert Media" in CKEditor.

Thanks for the details, I was able to reproduce this issue on the Drupal version 9.5.12-dev, and the patch was applied successfully but the issue is still not fixed. Sharing the steps below which I have followed, please share more details if you feel I am testing it wrong-

• Download and install the Media Directories module.
• Configure Embed media.
• Go to Content and Embed media item. (Sharing results attached)

Testing Results-
Able to reproduce the issue & the patch was applied successfully. The issue was still not fixed for me after applying the patch.

@Sandeep_k,
On /admin/config/content/embed/button/manage/media_directories choose the Media type = Image and the Entity browser "Media Directories: Editor widget"?
On /admin/config/content/formats/manage/full_html add "Insert Media" widget (media_directories).

@Ruslan Piskarov Thanks, Patch worked for me now. Sharing the results below.
Testing Results-
Able to reproduce the issue & the patch was applied successfully. The issue was fixed after the patch was applied, attaching before & after results. RTBC+

Thank you for this solid contribution.

Change makes absolute sense to me, interfaces shall be used to get back the preview always, and the thumbnail image style (100x100) can be replace with the media_library (200x200) one, both will be in place due to our dependencies.

From D11, also 🐛 Media Library image style shouldn't be able to be deleted through the UI. Fixed

Automatically closed - issue fixed for 2 weeks with no activity.