【报Bug】微信小程序 map 标记点iconPath图标 苹果手机 不能单个设置了。以前没有问题。现在不知道为啥不行了

操作步骤：

                                var obj = {};  
                                $this.gcj=$this.wgs84togcj02($this.map.markers[i].longitude,$this.map.markers[i].latitude);  
                                console.log($this.gcj);  
                                $this.map.markers[i].latitude =$this.gcj[1];  
                                $this.map.markers[i].longitude = $this.gcj[0];  
                                $this.map.markers[i].iconPath = $this.map.markers[i].icon;  
                                $this.map.markers[i].width = 50;  
                                $this.map.markers[i].height = 50;  
                                $this.map.markers[i].id = i;  
                                obj.content = $this.map.markers[i].name;  
                                obj.color = "#262628";  
                                obj.fontSize = 20;  
                                obj.bgColor = "#FFFFFF";  
                                obj.padding = 5;  
                                obj.borderRadius = 10;  
                                obj.borderColor = "#EEEEEE";  
                                obj.display = "BYCLICK";  
                                $this.map.markers[i].callout = obj;  
                            } ``` 

预期结果：

                                var obj = {};  
                                $this.gcj=$this.wgs84togcj02($this.map.markers[i].longitude,$this.map.markers[i].latitude);  
                                console.log($this.gcj);  
                                $this.map.markers[i].latitude =$this.gcj[1];  
                                $this.map.markers[i].longitude = $this.gcj[0];  
                                $this.map.markers[i].iconPath = $this.map.markers[i].icon;  
                                $this.map.markers[i].width = 50;  
                                $this.map.markers[i].height = 50;  
                                $this.map.markers[i].id = i;  
                                obj.content = $this.map.markers[i].name;  
                                obj.color = "#262628";  
                                obj.fontSize = 20;  
                                obj.bgColor = "#FFFFFF";  
                                obj.padding = 5;  
                                obj.borderRadius = 10;  
                                obj.borderColor = "#EEEEEE";  
                                obj.display = "BYCLICK";  
                                $this.map.markers[i].callout = obj;  
                            } ``` 

实际结果：

                                var obj = {};  
                                $this.gcj=$this.wgs84togcj02($this.map.markers[i].longitude,$this.map.markers[i].latitude);  
                                console.log($this.gcj);  
                                $this.map.markers[i].latitude =$this.gcj[1];  
                                $this.map.markers[i].longitude = $this.gcj[0];  
                                $this.map.markers[i].iconPath = $this.map.markers[i].icon;  
                                $this.map.markers[i].width = 50;  
                                $this.map.markers[i].height = 50;  
                                $this.map.markers[i].id = i;  
                                obj.content = $this.map.markers[i].name;  
                                obj.color = "#262628";  
                                obj.fontSize = 20;  
                                obj.bgColor = "#FFFFFF";  
                                obj.padding = 5;  
                                obj.borderRadius = 10;  
                                obj.borderColor = "#EEEEEE";  
                                obj.display = "BYCLICK";  
                                $this.map.markers[i].callout = obj;  
                            } ```