Chest Opening Crash

If you encounter an issue when opening Chests but resources or keys are deducted, the rewards are still earned.

After selecting the number of Chests to open, if you notice the currency, Key, or resource is deducted, but the game happens to crash, freeze, or encounter an issue, the Troops and rewards are earned.

The game is designed to collect the rewards even if a crash or server error occurs. As soon as you select the button, the game client tells the server which rewards you earned from the chest; everything else afterwards is just a visual animation.

It is the same for your battle crashing once the reward screen has started loading; this is a visual animation, and the rewards have already been added to your account.