Post installation

Hi

I use Drupal 10 and of course ckeditor5.
Unfortunately, I do not see the images or videos that I insert in the editor.

However, I see them well in the page.

However, I see them well in the page.
In the editor, I only see the two arrows to insert a paragraph above or below.

In the console I receive the following message:

Hi everyone! I’m working with Drupal 9 and have a question about data transfer between webforms. I’m setting up webforms for a site where we offer demo content with interactive features. I need to automatically update one form after specific actions are completed on another.

 I’m working with Drupal for website, where we offer demo versions of online games. I need to set up automatic updating of one form after certain actions are completed on another form. For example, after a bonus is viewed on the second form, I’d like an automatic message or new element to appear on the first form, displaying updated bonus information.  Both forms are created using Drupal’s Webform module, but they have no direct relationship. I’m using sessions to store data from the second form, but I’m unable to trigger Page load on the first form due to null argument limitations.

Whats the significance of these 'page not found' errors logged by the system? Hacking attempts? Bots? Has my site been compromised, or is vulnerable?

/wp-admin/user/xmrlpc.php

/css/xmrlpc.php

/.well-known/acme-challenge/xmrlpc.php

Plenty of messages getting logged in a short span. 

I’m working with Drupal for website, where we offer demo versions of online slots and information on bonuses. Players can enjoy slots without registration. I need to set up automatic updating of one form after certain actions are completed on another form. For example, after a bonus is viewed on the second form, I’d like an automatic message or new element to appear on the first form, displaying updated bonus information. Context: Both forms are created using Drupal’s Webform module, but they have no direct relationship.

We just launched an upgrade of our site in Drupal 10. Within a day or two we had cache tables > 10GB, and trying to clear the cache was taking hours. This seems bad?