Failure when attempting to rollback 6.9 to 6.8

I just tried rolling back a site from 6.9 to 6.8 in LocalWP and I got an error:

Fatal error:  Uncaught Error: Attempt to modify property "updates" on bool in /Users/westonruter/Local Sites/wp68/app/public/wp-content/plugins/core-rollback/src/Core.php:185
Stack trace:
#0 /Users/westonruter/Local Sites/wp68/app/public/wp-includes/class-wp-hook.php(343): Fragen\Rollback\Core->add_rollback_offer(false)
#1 /Users/westonruter/Local Sites/wp68/app/public/wp-includes/plugin.php(205): WP_Hook->apply_filters(false, Array)
#2 /Users/westonruter/Local Sites/wp68/app/public/wp-includes/option.php(2622): apply_filters('site_transient_...', false, 'update_core')
#3 /Users/westonruter/Local Sites/wp68/app/public/wp-includes/update.php(40): get_site_transient('update_core')
#4 /Users/westonruter/Local Sites/wp68/app/public/wp-includes/class-wp-hook.php(339): wp_version_check()
#5 /Users/westonruter/Local Sites/wp68/app/public/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters(NULL, Array)
#6 /Users/westonruter/Local Sites/wp68/app/public/wp-includes/plugin.php(522): WP_Hook->do_action(Array)
#7 /Users/westonruter/Local Sites/wp68/app/public/wp-admin/includes/class-core-upgrader.php(221): do_action('upgrader_proces...', Object(Core_Upgrader), Array)
#8 /Users/westonruter/Local Sites/wp68/app/public/wp-admin/update-core.php(903): Core_Upgrader->upgrade(Object(stdClass), Array)
#9 /Users/westonruter/Local Sites/wp68/app/public/wp-admin/update-core.php(1175): do_core_upgrade(true)
#10 {main}
  thrown in