Garbage data in persistence and charts

Setup, Configuration and Use Items & Sitemaps
1

Hi all,
I am seeing a lot of rubbish data in my charts, which are all on rrd4j persistence.
See attached image.
Running OH 1.7.1 on Synology NAS.
Haven’t seen this problem before and not sure what to make of it.

The baseline is the correct values, which are 433 T/H sensors into OH via Ninja Block and MQTT binding. The peaks appear to be rubbish data…
Have tried reboot of Ninja Block and OH server.

Any ideas??

2

I have checked my MQTT and the correct values are being transmitted. It appears the problem is at the persistence side of things.
I have deleted my persistence files and repopulated, but still getting nonsense data.

Does anyone have any ideas?