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I'm developing a BLE HID Keyboard.My deivce is using a BLE5.0 wireless SOC, I have complete the device BLE service, and can report a Key value to Cilent.The device works well on Android, Windows 10, and Mac OS. And also works well on the old version iOS. The key value can be written to the notepad on Client device(Android, Windows 10, Mac OS), but failed on iOS12.3 and iOS12.4. I can capture the HID report data over the air by a sinffer, and the report data is correct. But it can not be written to a notepad.I don't know the different between the older version and iOS12.3, I can I fix the issue?