After an automatic reboot from a crash, the task state file is often empty. This leads to the above error. And there is no checkpoint information. I'm running a Windows 10 Pro x64. An in-process task will then show 0% progress and will begin over. However, the BOINC manager will show an elapsed time. I've found that resuming such a task usually results in a validation failure. I abort it to begin a fresh task.

I thought elapsed time was also contained in the task state file. I'm clueless how it's recovering that information. These tasks seem to checkpoint fairly often so my inclination is to believe the file was active at the time of crash and was left blank.

Is this task lost because of the crash state? Is there a way to preserve the task state file upon a crash?