Cannot access Design Library Panel

I cannot access the Design Library Panel inside the FSE any more. It is however accessible when I edit pages / posts via the Wordpress admin menu.

Steps to reproduce:
I wish I could reproduce the steps. Is there a setting I could try? What would be the best way to debug this?


  • WordPress version: 6.3.1
  • Cwicly Plugin version:


Short video in which I try to access the design library by adding a new element in one of the template files (I could not use the attachment upload for this…):

Hi @mat5ch,

Welcome to the community :slight_smile:

Sorry to hear you’re experiencing trouble with this.

From your screencast, it seems you might be experiencing an SSL or HTTP auth error, as the styles are not being properly loaded.

Please see this post: Why are my styles not being properly loaded?
If this doesn’t help resolve your issue, please try this:

Once this is resolved, please see if you can access the Cloud Design Library from the Site Editor as expected.

Thank you in advance.

Thanks for getting in touch. However, I am fairly certain that it is not a SSL or HTTP issue.

Here is the console output for the corresponding editor window:

Thank you for the screenshot!

The Store "core/interface" is already registered error was introduced with 6.3, and is unrelated to this issue.

However, the Error while transversing the CSS:... is an error that occurs when Gutenberg is trying to make a call to get specific CSS files, but cannot due to either an SSL or HTTP auth issue.

To investigate further, could you possibly provide a temporary access to this installation either by email to or by PM?

If this is possible, for security and privacy reasons, kindly send the details using our paste website, by sharing the link generated:

Thank you.

I think I have a clue why this is happening. If I still cannot fix the issue I will come back to your proposal.

Short update:

I previously had set up password protection for the site via an .htaccess. Removing that got rid of the Error while transversing the CSS:... error and now only the Store "core/interface" is already registered error is left and a few deprecated warnings. There are no signs of any files not being loaded.

I just investigated the DOM a bit. It is the container surrounding the site logo top left which overlaps the Cwicly inserter toolbar (see screenshot below). I feel like it is just a Gutenberg / Wordpress core issue. You might be able to tweak the editor styles of the plugin a bit though.

Unfortunately, I experienced a few more issues when editing in the FSE (see post).

I will stick to the plugin version for now. Hopefully, things can be fixed soon.


I cannot reproduce the Design Library access issue.

Can you confirm that you can access the library here:$2y$10$yJjboi02hunYKwU2z7GR..nHUyRCViS/lTVdECUCXjTjNTvWtDgmC

Best regards,

Hey Johnny, thanks for your reply.

Accessing the design library seems to work. At least, I could not reproduce when testing on a local environment and after reinstalling Cwicly to the latest version. It might have had something to do with using the site customizer and introducing a SVG logo?! Just guessing here.

Anyways, the thread could probably marked as solved.