When you take the stake of a player and either

A) a non VIP3+ loots the stake

or

B) its a stake from a VIP3+

You will automatically get the 50% of the stake. In the case of (A) you will get an error, but in either case you MAY need to reload for your UI to show the stakes the game has given you.



You are getting the rewards, it like many things in the game comes down to a UI error. Your browser UI doesnt always update for things that happen in game automatically and requires a refresh to fix.