Contentbox install-wizard failing

I’ve tried to use the contentbox install-wizard and it’s returning an error stating that the cfml engine was not selected although it was. (selected lucee 5)

Here’s the error:
The CFML engine passed () is not valid. Valid choices are [lucee@5, lucee@6, adobe@2018, adobe@2021, adobe@2023]

From this screenshot you can see that it did not pick up the selection in the confirmation window: adavis-icnd

selecting lucee 6 appears to install, just not lucee 5.