I posted this as a reply elsewhere, but thought it needed a new post. This is more of an FYI as I have resolved it.
Fresh Builds of Contentbox are breaking for me.
I’m have the latest Commandbox, OpenJDK11.
After doing a ContentBox installation with Lucee@5 as the engine, using contentbox-cli, everything builds normally, but the page will not load, throwing an error about not being able to initialize ORM because it can’t find the right class files.
To fix it. I stop the server and edit the server.json value for cfengine to email@example.com. (it was pulling the latest registered stable tag of 184.108.40.206).
After this, all works as expected.