Hi all,

 
I’m running into an issue with the Trend Line Chart control in TwinCAT HMI where the element consistently throws a “Range mismatch” error at runtime. The chart loads, but as soon as data is pushed into it, the error appears and the trend fails to display correctly.

I've attached a screenshot of the error.

I’ve already reached out to Beckhoff support, but they weren’t able to identify the cause either.

Has anyone experienced this behaviour before, or found a workaround/fix?
Any insights, examples, or debugging tips would be greatly appreciated.

Many thanks in advance.

Ed