not sure if I found a bug or if i'm just doing it wrong.
What I try is to create a grid that is per default grouped with GroupPaging and has a checkbox selection column with PersistSelection.
However I only get a js error "Cannot read property 'undefined' of undefined" @init._restoreSelection (kendo.all.min.js:62).
I tried adding an Id field but it still doesn't work. Only changed error to "Cannot read property 'Id' of undefined".
If I remove the PersistSelection it works fine.