Favourites count and Retweets count are not matching with Parent tweet when retweeted
For eg:
There is a tweet with Tweet Id 1000;
I’m retweeting the Tweet with Tweet ID 1000;
My New tweet Id is 5000
Tweet Id 1000
Retweets 100
Favorites 20
Parent Tweet Id None
retweeted true
favorited true
Owner xyz
Im retweeting the above tweet
Tweet Id 1000
Retweets 101
Favorites 20
Parent Tweet Id None
retweeted true
favorited true
Owner xyz
Tweet Id 5000
Retweets 101
Favorites 20
Parent Tweet Id 1000
retweeted true
favorited false
Owner me
If some user or me itself favourited my Tweet (Id 5000)
Tweet Id 1000
Retweets 101
Favorites 21
Parent Tweet Id None
retweeted true
favorited true
Owner xyz
Tweet Id 5000
Retweets 101
Favorites 0
Parent Tweet Id 1000
retweeted true
favorited true
Owner me
1.If the parent metrics alone changes why retweets (101) are returning correctly but not favourites.(0)
2.Why favourites of my Tweet ID(5000) are not getting increased and always returning as 0 even though i favorited
3.Why the retweets are returning from the parent tweet but not.
Why the data is returning like this from user time line API.
Is it the issue with Twitter API?
or
If it has a decent reason i would like to know why!!