Widget doing many amazing things. But, Unable to sort the data table column populated from reference.This can be replicated even in data table demo project .Try sorting the 'country name' column populated using reference Person_Country.
I misread this topic, it is about my datatables widget. Issue has been fixed. I expect it to be in the appstore soon.
Edit: fixed version is in the appstore.
File a support ticket with the project as proof. (I thought this one was fixed a while ago. )