Unable to edit and save block/section name in the Layer Manager. Although it can be changed by double-clicking on the name and then editing the name i.e. "Some new label name" in the attached screenshot, but when I save it and reopen the page, the name reverts to the default Page Builder block/section name. This is a bug and needs to be fixed. It is very difficult to identify the multiple block/section when all the names are identical i.e. "Joomla Articles / Categories: Jcontent 08"
This is a T4 Page Builder standard problem.
Don't ask me to upload my test site online for you to check.