Hello, Lutz,
I am glad to hear that you are moving forward. I had a look at the provided screenshots but I cannot see a SomeotherInformation field at all. Perhaps you intended to attach a different screenshot?
However, I would like to use this opportunity to advise you regarding the schema model definition. The schema enables the Kendo UI Data Source to parse the data that it receives. In your case, instead of binding the Kendo UI Grid to nested fields, you can use the Model:
https://docs.telerik.com/kendo-ui/api/javascript/data/model#methods-Model.define
Also, instead of using a client template, you can take advantage of columns format for the Modified column:
https://docs.telerik.com/kendo-ui/api/javascript/ui/grid/configuration/columns.format
We have an article which shows how to use nested properties that you may find useful:
https://docs.telerik.com/kendo-ui/controls/data-management/grid/how-to/binding/use-nested-model-properties
If you need more help, Could you copy and paste the response in the thread? An easy way to do that could be to stringify it when you log it in the console, so I can test it in a runnable example:
Look forward to hearing back from you.
Kind Regards,
Alex Hajigeorgieva
Progress Telerik