Pages not displaying content once updated.

Here are the steps I’m taking and the issues that are occurring with a new website I am building.

My on-page work is simply not showing on pages that I edit once I have updated and left the page and return to the page.

1) Go to a page, click edit on any page.

2) While on the page I go to BeBuilder section and click edit on any content section. All okay, works great.

3) After editing the content, I’ll click publish.

4) The page will try to update, I’ll get a notification in the bottom left saying it updated (but the page never updates). The update button will say ‘Updating…” everything 'looks' okay.

5) Changes will save if I go back and check by clicking edit again, no issues whilst on the page.

6) I leave the page, and then return; what shows is not the page I have built, but my home page in its place. This happens on every page I have built.

7) On some pages, I can go back and see the history, the build is there, I click restore and update again, but although it looks okay, if I leave the page and come back, the work is gone again.

8)I click 'preview' or 'view page', the only thing I see is the first section of my homepage, I cannot scroll or click on any element on the design in this mode.

WordPress 6.8.1 running Betheme 28.0.6 Beeco theme. Vars setting is 10,000, I have 19GB capacity left with my host, CPU isn't a problem. I use SiteGround. Please Help!