package dnscrypt-proxy 1.6.1-1 failed to install from aptitude subprocess installed post-installation script returned error exit status 1

[Jonathan Polak]

i was at the time connected to vpn.
installed unbound in the same aptitude session.
unbound was installed ok

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: dnscrypt-proxy 1.6.1-1
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Thu Aug 25 08:49:58 2016
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2016-07-23 (32 days ago)
InstallationMedia: Ubuntu-MATE 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: dnscrypt-proxy
Title: package dnscrypt-proxy 1.6.1-1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Jonathan Polak (jpolak)]

installing up with vpn off succeeded

[Jonathan Polak (jpolak)]

this is a security problem ... what if users need to have vpn on?

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.