Inspec test failing on virtualization.virtual_system

Description

In a cookbook compliance/inspec test, "virtualization.virtual_system?" is failing. Appears to be returning nothing (nil) on Redhat
Code works fine in chef-client-17 but is failing on chef-client-18

Chef Version

18.1.0

Platform Version

Running on vmware: Redhat 6.10, Redhat 7.9, & Redhat 8.4

Replication Case

I've a cookbook compliance test that works fine via chef-client-17 but suddenly failing on chef-client-18

For debugging, I put in code into my test.rb file:
if virtualization.virtual_system?
puts "============== YES virtualization.virtual_system? "
else
puts "============== NOT virtualization.virtual_system? "
end
puts "NAME=" + virtualization.system

Client Output

Output from my debug lines running chef-client-18 are:
============== NOT virtualization.virtual_system?
no implicit conversion of nil into String

when I run the same code on chef-client-17.10.3 I see what I expect to see of:
============== YES virtualization.virtual_system?
NAME=vmware

Stacktrace

Start with the virtualization.virtual_system? call in the cookbook compliance/Inspec test and compare its behavior between chef-client 17.10.3 and 18.1.0. Reproduce on VMware with Red Hat 6.10, 7.9, or 8.4, and inspect the reported nil value and virtualization.system output. Done means the predicate and system name behave as expected on chef-client 18.