NetVault service fails to start with "Invalid programs file" "Failed to get IPC key" (4039549)

Following a reboot of a Linux NetVault Backup server, the NetVault service won't start.
Trace on the nvpmgr process (NetVault Process Manager) shows it fails to allocate shared memory from the system as the 'programs.cfg' file is invalid.

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3   PMGR   ???   1815   25   0   122821716553   PmgrInitSharedMem
3   PMGR   ???   1815   91   0   122821716750   lShmSize 524288, default 512000
5   SHM   ???   1815   6   0   122821976183   ShmAllocate(3f1d0, 524288)
5   IPC   ???   1815   1   0   122821976192   Locating path for IPC key generation
6   FILE   ???   1815   15   0   122821976234   FileStreamOpen(6ca08, /opt/netvault/config/programs.cfg, 0x101)
5   IPC   ???   1815   2   1   122821977161   Invalid programs file?
5   IPC   ???   1815   3   1   122821977169   Failed to get IPC key (0,0)
0   PMGR   ???   1815   27   0   122821977190   failed to get shared memory for process manager
6   SYSTEM   ???   1815   20   0   122821977213   Logging 'Process 'nvpmgr' failed to get shared memory' to system logs
0   PMGR   ???   1815   158   0   122821977410   Failed to initialize shared memory
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