Cortana integration to third party apps

[kvrbrijith]

I'm using Lumia 830 with latest Redstone build. Cortana is on Indian English. The problem is, no third party app integration works in Cortana (Wunderlist, twitter, Wikipedia etc.). Other voice assistant apps-that can be activated through Cortana (snowy/voice butler and all) are not working as well. Is this a problem of the speech language(Indian English)..? Can anybody reply?