OH-4 Trendline not showing

Hi everybody,

my OH 4.3.2 is not showing any trendlines. Even the chart-pages are empty.
It doesn´t matter if I use Edge-Browser on my PC or the Android-App.
I already deleted the rrd4j files of the things, and they´re recreated automatically, but even that didn´t help.

Does anybody have an idea, what coud be the reason, or does anybody have an idea what I can check?

Thanks
Blauaugenmaki

have you set the default persistence?

Thank you! That solved my problem. I feel a bit silly for not figuring it out myself…