Hello,
It has recently happened to me in two different installations that the content of an SP Page Builder page disappears.
I have been working with SP Page Builder for a long time and have never experienced anything like this. Possibly it has to do with the expiration of the Joomla session and the attempt to save the SP Page Builder page - the result in both cases was an empty page.
One installation is running Joomla 5.x, SP Page Builder 5.1.8, Helix Ultimate 2.0.16 and PHP 8.2.
The second installation runs under Joomla 4.3.4, SP Page Builder 5.1.9, Helix Ultimate 2.0.17 and PHP 8.1.
The first installation is a test site, so it wasn't really a problem - page was recreated, done.
With the second installation - a Joomla installation that has been running since Joomla 3.x and SP Page Builder 3.x and never had this problem (with version 4.0.8 of course other problems), it happened for the first time after upgrading from SP Page Builder 4.0.8 to 5.1.9.
I experienced the problem live during the first installation, but during the second installation I only saw the end result - a blank page.
The person who edited the page described the process like this after we talked about saving immediately after changes:
"I always save immediately, only if it takes longer than about half a minute to confirm the save, I usually let it run because then I have to do something else again."
So I can't say for sure - what could be the reason?
Regards - Marco