Getting same usage for app wise usage.

[hanzala67]

hii,
this is working good Till android L and from android M when getting constant usages for each app and it is not increasing according to app usage, for e.g. when i installed the demo app i got 45055 B usage for Youtube, after using Youtube for a while i got the same usage i.e. 45055 B. Kindly note that over all data usage is working perfectly but app wise data usage is not. I have tried on Android L,M,N so far.