Suddenly every task is ERRORING OUT in a matter of a few seconds after starting. Doesn't matter what version of Windows they are running on.

They ALL have the same thing in common: Error: startup_info.hStdInput is invalid
Example https://rake.boincfast.ru/rakesearch/result.php?resultid=167321336

Stderr output
<core_client_version>7.16.20</core_client_version>
<![CDATA[
<stderr_txt>
18:59:29 (3392): wrapper (7.9.26016): starting
18:59:29 (3392): wrapper: running rake_lsspectra_3.7_windows_intelx86_64.exe ()
Error: startup_info.hStdInput is invalid
19:02:41 (3392): rake_lsspectra_3.7_windows_intelx86_64.exe exited; CPU time 177.685139
19:02:41 (3392): called boinc_finish(0)

</stderr_txt>
]]>

Edit to add they are all marked VALID ON THE WEBSITE HERE but marked INVALID ON BOINC upon "completion"