Do not set handled.
MODIFY
WalletWasabi.Gui/Behaviors/CommandOnKeyUpBehavior.cs
WalletWasabi.Gui/Behaviors/CommandOnKeyUpBehavior.cs
@@ -18,7 +18,7 @@ namespace WalletWasabi.Gui.Behaviors
Disposables.Add(AssociatedObject.AddHandler(InputElement.KeyUpEvent, (sender, e) =>
{
CommandParameter = e;
- e.Handled = ExecuteCommand();
+ ExecuteCommand();
}, RoutingStrategies.Tunnel));
}

Do not set handled.