Page Builder Pro does not create any pages

i have had that same issue. what i do is create the pages in the administrator interface and then i move to the front end editor.
If you were working in the back end, you need to make sure you click APPLY and then SAVE. as it sometimes doesn't save. If you are working from the front end, get in the habit of looking for those apply buttons as well and clicking those before you save.

Hi there,

Thank you fro your help but maybe I did not write correctly.
My problem that I cannot create any page.
I work on admin page (back end):
1: I click on "Pages" (on Page Builder menu)
2: I click New
3: I type the Title as very simple as it is possible like: "Test"
4: I click on "Save and Close"
5: Result: After it si closed, I see the same empty place that I saw before, no page. Exactly the same that I wrote above at the second step. There is no any page that I could open it again.

Other version what I tried:
I work on admin page (back end):
1: I click on "Pages" (on Page Builder menu)
2: I click New
3: I type the Title
4: I click on "Apply" then the green pop up show up and says "Page Succesfully Saved".
5: Now "Front End Editor" button sow up, so I click on it.
6. New tab Automatically open in my Browser with 404 error message.

That is it.

I used Page builder several times in the past with Joomla 3. Now this is my first time when I try to use it Joomla 4.

Hello There,

Finally I found the reason of this problem. It is NOT the SP Page Builder fault. It was one problem between th Page Builder and Database connection. I found the this message in the Joomly System options, and fortunatelly, the "Update Structure" button solved the problem.
Anyway, Thank you for your helpful attitud.
hereh is the sreenshot if it is help for someone: