Hello All! I've had a shock. After using both Opera Mini and Opera on 3 different phones over several years, I've never had any kind of data loss.
Today, about a dozen Lv. 2 subfolders vanished from one folder, and the same for several other folders. The only aberration in my phone use was yesterday, I used Opera to log out of a secondary Google account, on Google (Web).
Once,I had both accounts logged in from the same device, and when I logged off the secondary, I lost a few months' entries in Google Calendar. Logging the seco acct. back in didn't restore the lost Calendar entries.
Were my Opera Bookmarks somehow cross-linked to both accounts, causing bookmark loss when I logged the seco acct. out of Google?