TJTheveshwar Jayakumar Syncfusion Team January 5, 2023 04:22 AM UTC
Initially, this issue has occurred in the following version starting from (v20.3.47) which was caused by setTimeout function that slows down the rendering of Syncfusion components. We have added this delay to resolve the issue of child templates not being rendered in karma unit tests. And we have fixed this issue in our latest patch release version (i.e. v20.4.40). So, to resolve this issue please update our Syncfusion components to the latest version.