History graphs - lines smooth on one card, other card has jagged lines

Hello. I am very new to this and a real novice so I apologise in advance if this issue is obvious and I missed something easy, and apologise if this is the wrong forum.

I have three sensor reading boiler temps and I have created a history graph with lines in a card. Looks fine, lovely smooth lines through the points where the data is captured every 10 seconds. I add some more sensors, same as the first three to a new device and create another history graph with lines in another card. However, these line are displayed all jagged and jerky, nothing like the good ones in the first graph. I’ve tried lots of things to patch it up but it just keeps making the same jagged graph. I’ve deleted and reinstalled the sensors and no change. I have also copied the good graph and tried to add the new probes. Looks okay until I delete the remaining probe from the copied graph and its back to jagged again. Everything is the same between how the sensors were created and what they do etc. but the second graph will not create smooth lines.

Any ideas?

Many thanks

The show more detail button in the card edit screen?

Hi, thanks for the alternative graph that could be used. I can see where that is useful in certain scenarios.


This is what I have. I would like to have the X and Y scales as well. You can see in this plot that the lower graph is rather jagged and the upper one isn’t.

Maybe I need to explore more options and adjust my needs but would like to resolve the issue I have.

Thanks.