Hello
I've noticed the same problem on a website in development. In frontend custom admin, I've got a Seblod list & search for custom articles. When one user connected edits one article, it isn't locked (no change in check_out table). So any user can edit same article at the same time...
Did you find any solution to this problem ? Does anyone notice that ?
I use Joomla 3.9.18 and Seblod 3.18.2
Thanks