This block has encountered an error and cannot be previewed

[malteseunderdog]

In the WordPress admin dash, if I select Appearance → Editor, I get many blocks display “This block has encountered an error and cannot be previewed” (as shown below).

This is with all plugins disabled and also in both firefox and chrome.

[oglekler]

Hi and welcome to WordPress Trac!

Please note that this Trac is used for enhancements and bug reporting for the WordPress core software, not for individual support questions.

I see that you asked on the Forum already:
​https://wordpress.org/support/topic/this-block-has-encountered-an-error-and-cannot-be-previewed-58/
You can change theme, ask your theme developer or debug yourself, see more:
​https://wordpress.org/documentation/article/debugging-in-wordpress/
​https://wordpress.org/documentation/article/faq-troubleshooting/

Since there is no specific bug report against WordPress Core software, I'm closing this ticket as invalid.

[malteseunderdog]

Where do I report this as a bug in the twenty twenty-three theme please (isn't this the default that comes with wordpress?)?

Apologies for posting in the wrong forum, I am still trying to find my way around here.