yes, 1. you are not using the latest stable manjaro gnome minimal ISO to run architect, because architect isn’t included in the latest stable manjaro gnome minimal ISO
As far as I know, Architect is in hold and not supported anymore for lack of time regarding its maintenance. I think it has been retired for now due to critical bugs that can lead to disastrous issue, I think I read unwanted disk format, things like that. Don’t take what I say for truth, do your research but I think Architect unfortunately is kinda dead at this point. It doesn’t mean it can not work. But for sure there are issues in it at this point in time and is officially not distributed as a way of installation.