bacula 9.6.5-2 common breakage

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Ubuntu 20.10
bacula-common_9.6.5-2_amd64.deb

expected: package should install without errors
actual: broken installation script

# apt reinstall bacula-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed
  bacula-common
0 to upgrade, 1 to newly install, 0 to remove and 118 not to upgrade.
12 not fully installed or removed.
Need to get 0 B/727 kB of archives.
After this operation, 2,115 kB of additional disk space will be used.
(Reading database ... 587447 files and directories currently installed.)
Preparing to unpack .../bacula-common_9.6.5-2_amd64.deb ...
Unpacking bacula-common (9.6.5-2) ...
dpkg: error processing archive /var/cache/apt/archives/bacula-common_9.6.5-2_amd64.deb (--unpack):
 unable to install new version of '/usr/libexec/bacula/bsmtp': No such file or directory
No apport report written because the error message indicates an issue on the local system
                                                                                         Errors were encountered while processing:
 /var/cache/apt/archives/bacula-common_9.6.5-2_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

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This was encountered installing over an existing bacula on an upgrade from Ubuntu 20.04
Installing on a clean system shows no issue but there isn't enough debugging to know why it's failing