Android侧收到自定义消息，但Flutter里addEventHandler的onReceiveMessage没回调

[Yaohong9257]

版本：jpush_flutter: 3.0.6

复现步骤：
1.极光后台->自定义消息->推送内容HelloWorld20240820_10:34，立即发送
https://www.jiguang.cn/console/push/#/push3/app/7bd7743d01d1b6c630e110e8/push_manage/create/custom

2.flutter日志显示，android收到了，如下，但flutter回调方法addEventHandler一个也没进入。

E/| JPUSH | Flutter | Android | (25261): [onConnected] :false
D/JIGUANG-JOperate(25261): [JOperateEventDispatch] onEvent:jcore_login,bundle:Bundle[mParcelledData.dataSize=88]
D/JIGUANG-JOperate(25261): [JOperateHelper] login
E/| JPUSH | Flutter | Android | (25261): [onConnected] :true
D/JIGUANG-JPush(25261): [ActionHelper] doAction:handle_msg
D/JIGUANG-JPush(25261): [JPushActionImpl] handle third message:intent.plugin.platform.REFRESSH_REGID
D/JIGUANG-JPush(25261): [ThirdPushManager] [refreshToken] , platFormInterfaceList size: 0
D/JIGUANG-JPush(25261): [JMessageReceiverHelper] not found user push message,use old action to user
D/| JPUSH | Flutter | Android | (25261): handlingMessageReceive cn.jpush.android.intent.MESSAGE_RECEIVED
D/| JPUSH | Flutter | Android | (25261): transmitMessageReceive message=HelloWorld20240820_10:34extras={cn.jpush.android.TYPE_PLATFORM=0, cn.jpush.android.CONTENT_TYPE=, cn.jpush.android.MSG_ID=18101641257346348, cn.jpush.android.EXTRA={}}

只有我遇到这个问题吗？