Hello
I recognized the following.
You can switch layers or columns to be invisible and they remain so, even when you save. You can also hide a module or text within a column and save it. But, if you then call up the page again, the module or the text within the column is made visible again automaticly. Using Joomla 4.3.1 PHP 8, Page Builder 4.0.10
We tried it on two different systems, same mistake.
Kind regards