【报Bug】midButton 发布后 iconPath 不显示,开发基座能显示

分类：uni-app

bug已确认

详细问题描述

【报Bug】midButton 发布后 iconPath 不显示,开发基座能显示
[IDE版本号]
HBuilder X 2.6.5.20200314
[windows版本号]
Win10
[运行端是h5或app或某个小程序？]
app
[运行端版本号]
最新版本
[项目是cli创建的还是HBuilderX创建的？如果是cli创建的，请更新到最新版cli再试]
HBuilderX创建
[Android版本号]
10
[手机型号]
hONOR v10

附件

"tabBar": {  
    "color": "#7A7E83",  
    "selectedColor": "#007AFF",  
    "borderStyle": "black",  
    "backgroundColor": "#F8F8F8",  
    "list": [{  
            "pagePath": "pages/tabBar/component/component",  
            "iconPath": "static/component.png",  
            "selectedIconPath": "static/componentHL.png",  
            "text": "内置组件"  
        },  
        {  
            "pagePath": "pages/tabBar/API/API",  
            "iconPath": "static/api.png",  
            "selectedIconPath": "static/apiHL.png",  
            "text": "接口"  
        }, {  
            "pagePath": "pages/tabBar/extUI/extUI",  
            "iconPath": "static/extui.png",  
            "selectedIconPath": "static/extuiHL.png",  
            "text": "扩展组件"  
        }, {  
            "pagePath": "pages/tabBar/template/template",  
            "iconPath": "static/template.png",  
            "selectedIconPath": "static/templateHL.png",  
            "text": "模板"  
        }  
    ],  
    "midButton": {  
        "width": "80px",  
        "height": "80px",  
        "text": "发单",  
        "iconPath": "./static/appfa.png",  
        "iconWidth": "60px"  
    }

在uniapp 演示模板上添加了一个midButton