Hi Blazej,
Thank you for contacting Syncfusion support.
We have checked your reported issue with your provided screenshots and we would inform you that in our latest version (18.1.43) we have included the breaking changes in the tag name (<e-rangeSettings> to <e-ranges>). So, we suggest you change the property name and upgrade our Syncfusion packages to our latest version to resolve this issue in your end. Please refer the below sample link.
Sample link:
Please refer the more information.
If the issue still persist in your end could you please replicate your issue in the above sample and send back to us, so that we can analyze and provide you a better solution.
Regards,
Arunkumar D