Around multi week prior I have chosen an extreme test: to uninstall an Opera program completely, to clean any follows off of this program and afterward reinstall it from the scratch once more. Sadly, presently I can express, the issue is as yet present on the most recent adaptations of Opera (right now I'm utilizing 68.0.3618.63 on Windows 7 x64 i7 machine) 
.
The testing is very irritating, on the grounds that this issue happens simply in certain events. I can't discover any reasons and hints about it. Now and then even I don't get a "Profile Error Occurred/Your inclinations records can't be perused. A few provisions might be inaccessible and changes to settings will not be saved" message, however some setup is all things considered lost.
For my situation every one of the settings of the Opera program are appropriately saved/reestablished, all open tabs are appropriately saved/reestablished also, yet I'm losing all login (dynamic meetings) information and settings of the individual Web-Sites. It appears as though clearing all Cookies, yet I do affirm - the switch named as "Clear treats and site information when you quit Opera" is consistently OFF in my program.