Hi Tommaso,
Greetings from Syncfusion support.
We are unable to reproduce the reported problem with provided information. we are created a sample with your query and shared sample for your reference as below.
Kindly share the below details to us that will help to validate further
1. Please share the issue reproducing sample.
2. Ensure Syncfusion package version used.
3. Please share the output screenshot in reproducing issue.
Regards,
Balaji Sekar.