"Sign in with Apple" implemented about a month ago worked well, but suddenly the following error began to occur on the 27th.No changes have been made so far.I tested it like this,1. i got authorization code using Service IDService ID is set correctly :Presumably the Services IDs/App IDs all need to be associated with the same primary App ID. The key is then associated to that group via the primary App ID too.i tried authorization code with Service ID using chrome browser :https://appleid.apple.com/auth/authorize?response_type=code&response_mode=form_post&client_id={corrected service id}&redirect_uri={registered redirect uri}&state=test_0001&scope=emailsuccessfully got the code.and requested api immately(The code is single use only and valid for five minutes)2. and then, i tried validate the authorization grant code to obtain tokenscurl -X "POST" "https://appleid.apple.com/auth/token?client_id={corrected service id}&client_secret={corrected client_secret}&code={corrected code}&grant_type=authorization_code"3. response is fails with an invalid_grant error, 400 status, invalid_granti tried get authorization code and validate the authorization grant code both using same service idis not invalid_client error, and client secret is not expired too.My decoded token looks like the following :"iss": "XFY******","iat": 1584347794,"exp": 1599899794,"aud": "https://appleid.apple.com","sub": "{service_id}"same test was working well for nearly two months. However, it is currently failing.I am having a hard time to solve this problemHas anyone experienced the same problem at about the same time?