I use Community BuilderYour version is2.7.4+build.2022.12.07.19.10.12.f06961ef4Latest version2.7.4+build.2022.12.07.19.10.12.f06961ef4JoomlaJoomla! VersionJoomla! 4.2.5 Stable [ Uaminifu ] 8-November-2022 15:00 GMT
 
I created an user, and when this user create an article in his profile, this article it is published into a long text, with no h2, h3 titles inside of text for exemple, no lists, no space beetwen phrases.
What have I done wrong?

I think it's not an error. It's about rights for registered user (registered, author, editor, publisher), because like administrator I am able to change titles, lists, etc, even in user articles.
Where I can take some help, for users permisions?

Like an user registered,
When I type an article, like an user registered account, my text doesn't keep characteristics, so it become an long text.
I discovered, if I type for blog area, into an user account, the characteristics are kept (h2 title, etc), so in this case it works (for blog)
Conclusion:
Only articles written by the user registered in his own profile doesn't work properly.

I think it is a Joomla problem for editing an article, according of permission of the admin, author, editor, published, etc...
Maybe we will find a solving together in time, because it is very important for a community to write and edit articles into o site.