Dear All, thank for the feedback and suggestions.
I have been able to find the problem and to solve it: Ignorantly I had put a gradle.settings not only into the ROOT folder, but also into each sub-project and these gradle.settings had defined a rootProject.name each. After having deleted these redundant gradle.settings in the sub- projects, everything works great! @Laszlo, two suggestions please: 1) Maybe ignore and/or warn about such incorrect settings, when they confuse Netbeans. After all, Command Line Gradle and also Intelli-J had not problems with it and so I still think that I was not totally wrong, while not being correct either. 2) Maybe double check, while the behaviour was so inconsistent and 4 out of 6 sub-projects were understood by Netbeans while 2 were interpreted differently. To me, this was actually the most confusing part. Anyway, I am good now and would like to thank you so much. Best regards and cheers Andreas
