[wp-trac] [WordPress Trac] #61285: Issue with Custom HTML Block in Gutenberg Version 18.4

[WordPress Trac]

#61285: Issue with Custom HTML Block in Gutenberg Version 18.4
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 Reporter:  valoir        |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Plugins       |    Version:
 Severity:  major         |   Keywords:
  Focuses:                |
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 Hello Gutenberg Team,

 I hope this message finds you well.

 I am writing to report a significant issue I've encountered with the
 latest version of the Gutenberg plugin (version 18.4). After an unnoticed
 update to this version, I have found it impossible to insert code into the
 custom HTML block. When attempting to do so, the block immediately
 converts the inserted code into paragraphs and text, rendering the
 functionality of the custom HTML block unusable.

 I spent several hours troubleshooting this issue and trying various
 solutions without success. Eventually, I discovered that deactivating the
 Gutenberg plugin resolved the problem, and the custom HTML block started
 working correctly again.

 I have also noticed that other users are experiencing the same issue, as
 reported in the support forums. This appears to be a bug introduced in the
 latest update and is causing significant disruption to those of us who
 rely on custom HTML blocks for our websites.

 Could you please investigate this issue and provide a fix at the earliest
 convenience? Your assistance in resolving this matter would be greatly
 appreciated.

 Thank you for your attention to this matter.

 Best regards,

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Ticket URL: <https://core.trac.wordpress.org/ticket/61285>
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