[Bug 1879592] [NEW] Netplan does not apply at boot after upgrade to 20.04

[Lithi]

Public bug reported:

Upgraded from 18.04 to 20.04 and now when the system boots Netplan fails
to configure the interface.  After booting I must run 'netplan apply'
for the interface to be brought up.

Here is my /etc/netplan/01-netcfg.yaml

network:
  version: 2
  renderer: networkd
  ethernets:
    eno1:
      dhcp4: no
      dhcp6: no
  bridges:
    br0:
      dhcp4: no
      interfaces:
        - eno1
      addresses: [192.168.0.10/24]
      gateway4: 192.168.0.1
      nameservers:
        addresses: [192.168.0.1]
      parameters:
        stp: false
        forward-delay: 0
~

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: netplan.io 0.99-0ubuntu3~20.04.1
ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34
Uname: Linux 5.4.0-31-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Tue May 19 18:02:15 2020
SourcePackage: netplan.io
UpgradeStatus: Upgraded to focal on 2020-04-25 (24 days ago)

** Affects: netplan.io (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal

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https://bugs.launchpad.net/bugs/1879592

Title:
  Netplan does not apply at boot after upgrade to 20.04

Status in netplan.io package in Ubuntu:
  New

Bug description:
  Upgraded from 18.04 to 20.04 and now when the system boots Netplan
  fails to configure the interface.  After booting I must run 'netplan
  apply' for the interface to be brought up.

  Here is my /etc/netplan/01-netcfg.yaml

  network:
    version: 2
    renderer: networkd
    ethernets:
      eno1:
        dhcp4: no
        dhcp6: no
    bridges:
      br0:
        dhcp4: no
        interfaces:
          - eno1
        addresses: [192.168.0.10/24]
        gateway4: 192.168.0.1
        nameservers:
          addresses: [192.168.0.1]
        parameters:
          stp: false
          forward-delay: 0
  ~

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: netplan.io 0.99-0ubuntu3~20.04.1
  ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34
  Uname: Linux 5.4.0-31-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: KDE
  Date: Tue May 19 18:02:15 2020
  SourcePackage: netplan.io
  UpgradeStatus: Upgraded to focal on 2020-04-25 (24 days ago)

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