When a RadzenDataGrid has GroupFooterTemplates set, and the rows in the grid are expandable, the group footers are appearing shifted left. It might be limited to composite data cell columns as in the example, but I haven’t tested that.
Here is a link to a sample generated in the playground using the DataGrid→Grouping→GroupFooterTemplate sample as a starting point, the main change i made to the sample is i added a Template so the rows are expandable. For clarity in identifying the issue I also changed the content of the group footers to simply be the column name they are supposed to be rendered under