Filtering in DataGrid returns empty list in some cases if Virtualization and LoadData mode are used

If RadzenDataGrid has set Virtualization and LoadData then the filtering (Simple and Advanced) returns empty list in some cases.

The problem can be reproduced without any code changes on the Radzen example web page:

Here are 2 short videos showing the issue:
Animation2
Animation1

The reason why I put this to the forum is that although I can reliably reproduce the issue, the problem is not reproducible for radzen developers.

So any input from users that could help to resolve it would be helpful.
Anybody experience the same problem? Any ideas what could be the reason?