The OP himself only gave a statement about the problem he was experiencing or in short, it was just a story. He did not provide details and evidence stating that the error actually occurred from Stake so that I or some people might not be able to believe what the OP had said.
Regarding the problem when failing to withdraw money in a bet to take profit, it is not the fault of the Stake, but the gambler who is less adept at making withdrawals. We can also see in some feedback regarding cases like this that the main mistake of gamblers is that they don't want to refresh the betting page to be able to get updates on the betting page.
So that we cannot completely blame the gambling platform that we use.
Just as I said the last time, ops should try as much as possible to take this outcome of the event in good faith and move on, next time he should be more proactive in claiming the cash-out amount and should not wait till the end of a match before claiming it because the bookmakers may have removed the cash out from their system already before ops have the chance to claim it.
-this should teach all of us a lesson not to get too greedy and if the game is not going according to our speculation we should at least take the little winning we have and move on unless we are ready to risk everything. The