ubuntu-release-upgrader UnicodeDecodeError: 'utf-8'

[sean]

None
No candidate ver: apipost
Traceback (most recent call last):
  File "/tmp/ubuntu-release-upgrader-xza0qqru/jammy", line 8, in <module>
    sys.exit(main())
  File "/tmp/ubuntu-release-upgrader-xza0qqru/DistUpgrade/DistUpgradeMain.py", line 241, in main
    if app.run():
  File "/tmp/ubuntu-release-upgrader-xza0qqru/DistUpgrade/DistUpgradeController.py", line 2042, in run
    return self.fullUpgrade()
  File "/tmp/ubuntu-release-upgrader-xza0qqru/DistUpgrade/DistUpgradeController.py", line 1873, in fullUpgrade
    if not self.doPostInitialUpdate():
  File "/tmp/ubuntu-release-upgrader-xza0qqru/DistUpgrade/DistUpgradeController.py", line 948, in doPostInitialUpdate
    self.tasks = self.cache.installedTasks
  File "/tmp/ubuntu-release-upgrader-xza0qqru/DistUpgrade/DistUpgradeCache.py", line 817, in installedTasks
    for line in pkg._pcache._records.record.split("\n"):
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb8 in position 458: invalid start byte

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.41
ProcVersionSignature: Ubuntu 5.4.0-153.170-generic 5.4.235
Uname: Linux 5.4.0-153-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.27
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Tue Jul 4 15:26:42 2023
InstallationDate: Installed on 2020-11-02 (974 days ago)
InstallationMedia: Ubuntu 18.04.5 LTS "Bionic Beaver" - Release amd64 (20200806.1)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to focal on 2023-07-04 (0 days ago)
VarLogDistupgradeAptlog:
 Log time: 2023-07-04 15:24:48.346235
 Log time: 2023-07-04 15:24:55.914194
VarLogDistupgradeTermlog: