Cubic install is different than original... why?

Making my first steps in automating the installation of Ubuntu. Found the Cubic package being recommended and I'm trying it out at the moment.

One thing I noticed on one of the first runs was that there is a difference in output. Let me explain:

I always choose the minimum installation for Ubuntu and creating a custom ISO with Cubic adds around 40+ extra packages, most visible is Thunderbird, even though I did a next, next, finish in Cubic and changed nothing. After installing the additional packages are just there.

Did I do something wrong, must I figure out which packages have been added and manually disable them, is this a bug in cubic?

If anyone can share any insight that would be great.

Solution 1:

Contacted the Devs and they have applied a fix. Updated to version 2021.09-53. Validated and the issue is resolved.