CommonMark Markdown Syntax 1.2 8.8, box, info box, warning box, error box are not working in WYSIWYG mode

I have a self-hosted XWiki instance. I installed CommonMark Markdown Syntax 1.2 8.8, and it mostly works fine. However, I’m unable to use the box, info box, warning box, and error box styles from the WYSIWYG editor. While editing, they work properly, but after saving the page, all the box formatting disappears, leaving only plain text. To work around this issue, I can explicitly write the following:

{{warning}}
my message
{{/warning}}

When the message is written in this way, everything remains intact after pressing the save button.

Hi, this is a known issue, see Loading...

Thanks