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Sporadic "Object reference not set to an instance of an object" with Drag-Drop operations

We are using 2 SfDataGrids in an WPF Application, with Drag-Drop between them. One SfDataGrid is also setup for Drag-Drop inside it. Both DataGrids use Master-Detail view.

The Application error log shows us sporadic exceptions with the SfDataGrid, and users report a related Application Error (which we need to create because of the unhandled exception).

We have attached error log items attached, with Stack Traces that we record. We where not able to find any relationship with the application code, as there is no application function in the Stack Traces to be found.

Please review these execptions and let us know how we can handle them, or if related null-safety can be included on the SfDataGrid to prevent such exceptions.

Thank you.