Problem Update 4.6

Do you have any customized code for this plugin?

not just the custom css add my theme

Can you give me screenshot of your message page?

Version 4.5

Version 4.6 no message

It is by design. Only unread message will show.
You can toggle message (read/unread both) by clicking sender name or anywhere of that line. Cursor will change when you take your cursor there.

Ok I did not know and it is not seeing it would be possible to add an arrow next to the user name so that it is more light?
https://fr.freepik.com/icones-gratuites/deux-fleches-vers-le-bas_779727.htm#term=fleches&page=4&position=34

Thank you