小米11出现了这个问题，其他手机再暂时没发现
SystemError (appServiceSDKScriptError)
Cannot read property 'data' of null
TypeError: Cannot read property 'data' of null
at Tt (WASubContext.js:2:937854)
at Et (WASubContext.js:2:939939)
at Object.kt (WASubContext.js:2:940111)
at Object.<anonymous> (WASubContext.js:2:499755)
at Object.p.<computed> [as canvasToTempFilePath] (WASubContext.js:2:740040)
at Object.<anonymous> (WASubContext.js:2:532077)
at Object.<anonymous> (WASubContext.js:2:1824562)
at Object.<anonymous> (WASubContext.js:2:1824692)
at < at wx.canvasToTempFilePath>
at Object.<anonymous> (WASubContext.js:2:111445)
你好，麻烦提供出现问题的具体机型、微信版本号、系统版本号，以及能复现问题的代码片段（https://developers.weixin.qq.com/miniprogram/dev/devtools/minicode.html）