After last upgrade systemd uses 100% CPU

[bssmusic]

I'm not sure, but none of the already reported bugs seems to fit. At shutdown I get for a moment many messages concerning "automatic report enabled but not possible" (roughly) and after showing these the shutdown lasts about one Minute.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: systemd 246.4-1ubuntu1
ProcVersionSignature: Ubuntu 5.8.0-18.19-generic 5.8.4
Uname: Linux 5.8.0-18-generic x86_64
NonfreeKernelModules: openafs nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu45
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri Sep 11 14:30:32 2020
InstallationDate: Installed on 2020-09-01 (10 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Alpha amd64 (20200826)
MachineType: Hewlett-Packard HP Z420 Workstation
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-18-generic root=UUID=8d55d30d-adfe-4f99-9e71-193677d1ec1e ro quiet splash vt.handoff=7
SourcePackage: systemd
SystemdDelta:
 [EXTENDED] /usr/lib/systemd/system/rc-local.service → /usr/lib/systemd/system/rc-local.service.d/debian.conf
 [EXTENDED] /usr/lib/systemd/system/user@.service → /usr/lib/systemd/system/user@.service.d/timeout.conf

 2 overridden configuration files found.
SystemdFailedUnits:
 Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4: Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use systemd-escape?).
 Unit \xe2\x97\x8f.service could not be found.
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/29/2019
dmi.bios.release: 3.96
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: J61 v03.96
dmi.board.asset.tag: CZC4123JXT
dmi.board.name: 1589
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 0.00
dmi.chassis.asset.tag: CZC4123JXT
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrJ61v03.96:bd10/29/2019:br3.96:svnHewlett-Packard:pnHPZ420Workstation:pvr:rvnHewlett-Packard:rn1589:rvr0.00:cvnHewlett-Packard:ct6:cvr:
dmi.product.family: 103C_53335X G=D
dmi.product.name: HP Z420 Workstation
dmi.product.sku: LJ449AV
dmi.sys.vendor: Hewlett-Packard