Vivaldi doesn't remember open tabs any more
I'm using the latest version 1.12.955, Vivaldi suddenly doesn't remember open tabs from last session and wipes them out every time windows restarts, but if I just open and close Vivaldi the tabs are still there.
May be files behaving straneg after crash.
Check in Windows Task Manager if any open Vivaldi processes (if so terminate them)
Open in Explorer %LOCALAPPDATA%\Vivaldi\User Data\Default
I've rebooted with vivaldi and tabs open (using latest version 1.12.955.38) and cannot replicate the issue.
My Vivaldis (i use the 1.13 Internal, the 1.13 Snapshot and 1.12 Stable) never had this with reboot of Windows 10.
I guess the user may have some Windows tool/setting speeding-up shutdown.