Incorrect output with Nested DataGrid

Radzen.Blazor Components
1

I'm having a problem trying to correctly display a nested DataGrid output.
I want the third DataGrid (second nested) to only display a single row, however two rows are displayed instead.
I'm not sure what mistake I've made, is anyone able to provide some assistance?

Output:

Nested DataGrid Display
Nested DataGrid Display1567×615 44.4 KB

Code:

Nested DataGrid Code
Nested DataGrid Code1920×1669 95.6 KB

HTML:

Nested DataGrid HTML
Nested DataGrid HTML1920×1406 104 KB

2

Never mind I've find my mistake.