profile gets deleted on startup due to account "no longer allowed as the primary account"

[Nicolas Richard]

I had chromium installed via snap :

installed: 89.0.4389.72 (1506) 145MB -

This morning I ran chromium and got the following message

    Your account (...) is no longer allowed as the primary account. Because this account is managed by (...), your bookmarks, history, passwords and other settings will be cleared from this device.

and, indeed, it was all gone. Impossible to synchronize to the account. I tried clearing ~/snap/chromium and ~/.config/chromium, but still could not restart synchronization.

Then I tried reverting :

$ snap revert chromium
chromium revenu à 88.0.4324.182

and things went working again : I can login to the account and the bookmarks/history/etc. are synced again.

I'm running Ubuntu 20.04.2 LTS

[Nicolas Richard (theonewiththeevillook)]

I tried updating to latest/edge channel

$ sudo snap refresh chromium --channel=latest/edge
chromium (edge) 90.0.4421.5 par Canonical✓ mis à jour

Problem persists : I can't activate synchronization.

When I click on the "user" button (top right of the window, next to the vertical-dots menu) I see:
- a button to activate synchronization, when I'm on version 88.0.4324.182
- no such button on version 89 (stable) et 90 (edge)

about://sync-internals shows "Disable Reasons" is "Not signed in". Here's the full report :

Thu Mar 04 2021 14:30:21 GMT+0100 (heure normale d’Europe centrale)
======
Status
======
{
  "actionable_error": [
    {
      "stat_name": "Error Type",
      "stat_status": "uninitialized",
      "stat_value": "Uninitialized"
    },
    {
      "stat_name": "Action",
      "stat_status": "uninitialized",
      "stat_value": "Uninitialized"
    },
    {
      "stat_name": "Error Description",
      "stat_status": "uninitialized",
      "stat_value": "Uninitialized"
    }
  ],
  "actionable_error_detected": false,
  "details": [
    {
      "data": [
        {
          "stat_name": "Transport State",
          "stat_status": "",
          "stat_value": "Disabled"
        },
        {
          "stat_name": "Disable Reasons",
          "stat_status": "",
          "stat_value": "Not signed in"
        },
        {
          "stat_name": "Sync Feature Enabled",
          "stat_status": "",
          "stat_value": false
        },
        {
          "stat_name": "Setup In Progress",
          "stat_status": "",
          "stat_value": false
        },
        {
          "stat_name": "Auth Error",
          "stat_status": "",
          "stat_value": "OK since browser startup"
        }
      ],
      "is_sensitive": false,
      "title": "Summary"
    },
    {
      "data": [
        {
          "stat_name": "Client Version",
          "stat_status": "",
          "stat_value": "Chromium Linux 90.0.4421.5 (6bb0ebcc9bbf6a347e4ed8f3dbc1811ba39efbb2-refs/branch-heads/4421@{#11}) unknown"
        },
        {
          "stat_name": "Server URL",
          "stat_status": "",
          "stat_value": "https://clients4.google.com/chrome-sync/dev"
        }
      ],
      "is_sensitive": false,
      "title": "Version Info"
    },
    {
      "data": [
        {
          "stat_name": "Requested Token",
          "stat_status": "",
          "stat_value": "n/a"
        },
        {
          "stat_name": "Received Token Response",
          "stat_status": "",
          "stat_value": "n/a"
        },
        {
          "stat_name": "Last Token Request Result",
          "stat_status": "",
          "stat_value": "OK"
        },
        {
          "stat_name": "Has Token",
          "stat_status": "",
          "stat_value": false
        },
        {
          "stat_name": "Next Token Request",
          "stat_status": "",
          "stat_value": "not scheduled"
        }
      ],
      "is_sensitive": false,
      "title": "Credentials"
    },
    {
      "data": [
        {
          "stat_name": "Server Connection",
          "stat_status": "",
          "stat_value": "not attempted"
        },
        {
          "stat_name": "Last Sy...