SPSureshkumar P Syncfusion Team February 3, 2020 10:06 PM
We have validated your explained scenario. We confirmed this as a bug in our end. And the fix will be available this week patch release. Which is expected to be rolled out on February 5th, 2020. We appreciate your patience until then.
You can track the status of the bug in the below feedback link from below.
We are glad to announce that our latest release in the version 17.4.47 has been rolled out successfully and in that release, we have included the “Two Way Binding Is Not Updating After First Selection”. So, we suggest you upgrade our Syncfusion packages to our latest version to resolve this issue in your end.