Accumulated points reset if a player earns them in both public and private versions of the game.
Here’s what happens: the player collects some points in the private version, then switches to the public version and earns more points. However, when they re-enter the game, all points are reset.
I joined with lvl 3 500/3000, when I rejoined it was lvl 1 100/1000. Persistence is on. So if stats creator doesn’t show lvl properly (it resets) so it means that u can’t use it to compare
Yes, that is how it works. Data for Private versions and Live version are not the same. You expect something that is not true by design. And yes, data for Private versions will not last, it is also happening in all of my maps and still in their Live versions it is working correctly and data are saved and load from the moment that player left the last session.
But there is one issue with it (I don’t know if it was fixed already or not), that you could be experiencing regarding resetting values from Stat Creator - I wrote about it a lot in this thread even with a workaround (kind of), that is so far working for me, so check it out:
By private I mean not play testing version. I was talking about public/live island: private match and public match
But the issue you described with the level reset is also happening to me.
FORT-831952’s status has changed to ‘Ready for QA’. A member of the QA department is investigating the issue.
I was really hoping this will be fixed in 34.20 but unfortunately it is not. The only way I found the custom UIs to work is when a new round is starting so players that join in progress will be reinitialized properly.
This device has way too many use cases (team scores, healthbars, rank systems, currency, points etc.) for it to be broken for 4 months now 
Hoping we get a fix soon!
Is there any update on this? The ticket has been stuck in ‘Ready for QA’ for nearly a month now.
I’ll check on status.
It seems to be finally working since the latest update to v34.30, at least in my 4 maps. Can somebody else confirm this? Because there was no mention about it in the Release Notes.
Well, it is working better, but it is still not reliable.
One hour ago I joined a session in progress with 2 my accounts (not at the same time and not in the team) when there were few players already and I saw the UI of Stat Creator on the HUD for both my accounts. But when I left it with my second account and joined after 30 minutes the same session again, this time the UI of the Stat Creator was not visible for that account.