After the 13.4 upgrade, my Gamepad can't work on iOS

Dear Apple, I am a mobile game player. Due to my clumsy operation, I purchased mobile gamepad to help me control the game better. But since upgrading to 13.4, my gamepad can't work. I went to the gamepad manufacturer and knew that a bug in the data interface of 13.4 caused the gamepad to stop work. We all know that Apple attaches great importance to user experience. Please fix the bug as soon as possible so that our millions of gamepad players can play better games and charge without any doubt. thank you very much!