🇮🇹Italy @systemx

[SOLVED] I discovered myself the reason for this problem, purely by chance and by exclusion. To summarise an article on a company website that I wanted to quote, I copied a couple of paragraphs and pasted them directly into the body field to suit my needs.

Only after looking carefully at the text did I realise that a very small blue arrow had appeared between the two paragraphs that should not have been there.

I did a subsequent test with a new node by typing in some false text and in this case the body field worked correctly.

Then i re-did the node I was interested in, but copying the text after pasting it into a 'text only' editor and everything worked correctly again.

Honestly, I have never bothered copying text taken from a third party, because Drupal has always asked me, when necessary, 'if I want to clean it up' and everything has always worked fine. This time it seems that something in the clean-up has gone wrong.

I'm only sorry that in my anxiety to solve the problem I didn't think to take a look at the editor source to see what kind of 'object' it was that escaped cleaning. 

I rebuilt a view from scratch, since I'd been fiddling with the previous one for quite a while trying to figure out why it wasn't working.
Now "magically" the "format" option of the "Group columns (additional)" display the description text properly formatted.
Finally I've the taxonomy parent term and its description well displayed 

Thanks @wombatbuddy for your replay

Never been installed, thanks. It was just a curiosity 'just in case'; i will wait for them to be removed

Found solution by myself after a lot of searches

Switched from pdo_mysql to nd_pdo_mysql under cPanel PHP settings

Thanks to all

Has anyone had these same problems?

Hi @markusa, thanks for pointing out this patch.
Regarding my third problem , I found out that CKeditor 5 has been tested by developers only on the latest versions of browsers, so it is easy that there may be glitches with older ones

Thank you very much, wombatbuddy,
I don't understand why I wasn't able to find them, considering I did a lot of searches even in the modules area, maybe I got the wrong keywords...
I installed and did a test with the Field Longtext Pager module and it works wonderfully.
Thanks again

systemx → created an issue.

Thanks for your pointers @wombatbuddy
Unfortunately, the first module does not change the limitations of Layout Builder columns, and the second one, which is very interesting, is only for bootstrap themes.

For the moment, but I am continuing to search, I found only one module, Koality Layout Builder Layouts → , which allows with its additional layouts to change by css the columns width, margins, padding and so on.
Many thanks for your reply