There are two issues with the Content Package to Feature Model Converter with respect to groups:
- If a group is set in the Content Package then this group will be used in the Feature Id as well as for the folder where it is created
- If anything changes in the Content Package Vault properties then this will not be reflected in the conversion on a Mac (10.14, Mojave). This is because the deflated file remains the same and in my testing the file did not change even though the package did.
The issue with the group is severe as the original POM file and the 'cp2fm-converted' file are not in the same location causing issues with the launcher at least.