vscode: Error while starting Sync: d is not iterable

• VSCode Version: Version: 1.48.0-insider (user setup) Commit: 5696babbc1dce41788bae04b1a04ad35140bebfb Date: 2020-08-03T05:51:31.732Z Electron: 7.3.2 Chrome: 78.0.3904.130 Node.js: 12.8.1 V8: 7.8.279.23-electron.0 OS: Windows_NT x64 10.0.20180

• OS Version: Edição Windows 10 Pro Insider Preview Versão 2004 Instalado em ‎29/‎07/‎2020 Compilação do SO 20180.1000 Experiência Windows Feature Experience Pack 120.19101.0.0

Steps to Reproduce: 1- Uninstall vscode completely and delete all the follwoing folders C:\Users\username\AppData\Roaming\Code - Insiders C:\Users\username.vscode-insiders 2- Install fresh version of Visual Studio Code Insiders 3- Turn on settings sync

The follwing error will appear: Error while starting Sync: d is not iterable

Logs [2020-08-03 11:54:39.003] [sharedprocess] [info] main {"machineId":"31f224bcc7e494ee0bcb3a6cfebc3c082f7202dacf32774b1b4d1fdd99d5e7a3","windowId":2} [2020-08-03 11:54:56.877] [sharedprocess] [error] TypeError: d is not iterable at Object.t.merge (file:///C:/Users/username/AppData/Local/Programs/Microsoft VS Code Insiders/resources/app/out/vs/code/electron-browser/sharedProcess/sharedProcessMain.js:419:563) at y.generateSyncPreview (file:///C:/Users/username/AppData/Local/Programs/Microsoft VS Code Insiders/resources/app/out/vs/code/electron-browser/sharedProcess/sharedProcessMain.js:466:728) at processTicksAndRejections (internal/process/task_queues.js:85:5) at async y.doGenerateSyncResourcePreview (file:///C:/Users/username/AppData/Local/Programs/Microsoft VS Code Insiders/resources/app/out/vs/code/electron-browser/sharedProcess/sharedProcessMain.js:441:752) [2020-08-03 11:55:21.081] [sharedprocess] [info] Starting to clean up unused language packs. [2020-08-03 12:00:02.030] [sharedprocess] [error] TypeError: d is not iterable at Object.t.merge (file:///C:/Users/username/AppData/Local/Programs/Microsoft VS Code Insiders/resources/app/out/vs/code/electron-browser/sharedProcess/sharedProcessMain.js:419:563) at y.generateSyncPreview (file:///C:/Users/username/AppData/Local/Programs/Microsoft VS Code Insiders/resources/app/out/vs/code/electron-browser/sharedProcess/sharedProcessMain.js:466:728) at async y.doGenerateSyncResourcePreview (file:///C:/Users/username/AppData/Local/Programs/Microsoft VS Code Insiders/resources/app/out/vs/code/electron-browser/sharedProcess/sharedProcessMain.js:441:752) [2020-08-03 12:08:05.228] [sharedprocess] [error] TypeError: d is not iterable at Object.t.merge (file:///C:/Users/username/AppData/Local/Programs/Microsoft VS Code Insiders/resources/app/out/vs/code/electron-browser/sharedProcess/sharedProcessMain.js:419:563) at y.generateSyncPreview (file:///C:/Users/username/AppData/Local/Programs/Microsoft VS Code Insiders/resources/app/out/vs/code/electron-browser/sharedProcess/sharedProcessMain.js:466:728) at async y.doGenerateSyncResourcePreview (file:///C:/Users/username/AppData/Local/Programs/Microsoft VS Code Insiders/resources/app/out/vs/code/electron-browser/sharedProcess/sharedProcessMain.js:441:752)

userDataSync

[2020-08-03 11:54:41.118] [userDataSync] [info] Auto Sync is disabled. [2020-08-03 11:54:55.192] [userDataSync] [info] Did reset the local sync state. [2020-08-03 11:54:56.895] [userDataSync] [info] Settings: Stopped synchronizing settings. [2020-08-03 12:00:00.514] [userDataSync] [info] Did reset the local sync state.

I tried the same steps on another version of Windows not insider preview and it work correctly.

Does this issue occur when all extensions are disabled?: Yes