We saw this error during a test restore of a bare metal \ image restore.
[cbs] erro,Delta file is corrupt ([FastPipedOutputStream.write] FastPipedOutputStream has been closed by the reading thread.)
The same error which can occur during a backup was fixed in Ahsay v126.96.36.199, however we hadn’t seen the error on a restore before.
This is the Bug fix - OBM7900 Backup Error “FastPipedOutputStream has been closed by the reading thread” (ref: NPM-864-82810, T-15443)
Although the log doesn’t show the reason why the restore failed, the cause in this instance was because there was insufficient local disk space to restore the image.
Ahsay OBM v188.8.131.52