Installer crashes partway through, can't use username and password I specified

Hello,

Ran into trouble installing 20.04 onto a Raspberry Pi CM4 on PiTray. Installer crashed out partway through, and would not let me login using the username and password I'd specified in the first half of the install process.

Not sure how to retrieve a log, but a bug report was sent automatically.

Anyone else had a similar issue?

Detail from the bug report:

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubiquity 20.04.15.2
ProcVersionSignature: Ubuntu 5.4.0-1022.25-raspi 5.4.65
Uname: Linux 5.4.0-1022-raspi aarch64
ApportVersion: 2.20.11-0ubuntu27.10
Architecture: arm64
CasperMD5CheckResult: skip
Date: Fri Jul 30 16:05:19 2021
ImageMediaBuild: 20201029
SourcePackage: ubiquity
UbiquityDebug:

UbiquitySyslog:

UpgradeStatus: No upgrade log present (probably fresh install)