Could you please share the following detail to reproduce the reported issue?
1. In which platform that you are facing the reported issue?
2. Can you please let us know in which version (Syncfusion control) do you have used?
Since we are not aware of the exact scenario in which this issue is occurring in your application, we request you to try our sample and provide us the exact replication procedure or video or modify the sample above and send it back to us to replicate the issue.
This will be helpful for us to provide you a good solution and improve us to serve you better.