开发工具上预览图可以全部显示出文字


安卓设备上也可以正常显示文字：



在ios上出现下面的样子，【51小程 序】微信环境播放audio在JSBridge下才行，audio没有同步延迟10几秒-微信小程序开 ...。只有选中的 tab 才显示文字：



tab这样设置的：
"tabBar": {
"color": "rgb(102,102,102)",
"selectedColor": "#ffffff",
"borderStyle": "#ffffff",
"backgroundColor": "#000000",
"list": [
{
"pagePath": "page/index/index",
"iconPath": "images/index1.png",
"selectedIconPath": "images/index2.png",
"text": "首页"
},
{
"pagePath": "page/classify/classify",
"iconPath": "images/classify1.png",
"selectedIconPath": "images/classify2.png",
"text": "分类"
},
{
"pagePath": "page/shopcar/shopcar",
"iconPath": "images/shopcar1.png",
"selectedIconPath": "images/shopcar2.png",
"text": "进货车"
},
{
"pagePath": "page/service/service",
"iconPath": "images/service1.png",
"selectedIconPath": "images/service2.png",
"text": "找客服"
},
{
"pagePath": "page/user/user",
"iconPath": "images/person1.png",
"selectedIconPath": "images/person2.png",
"text": "我的"
}
]
},



请问这个情况是兼容问题吗，还是我设置的问题

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