Installer installs default themes & skips installation step

[Larsklopstra]

Hey, when running lumberjack-bedrock new my-site on Windows 10 with composer 1.8.6 and PHP 7.4.6 it install all the default Wordpress themes and it skips a step:

Checking for updates...
Could not check for updates, maybe `composer` is not in your path?
Checking out Bedrock
Installing Composer Dependencies

Composer is in my path.

Perhaps it has something to do with

PHP 7.4: Trying to access array offset on value of type int