Hi Roger, thank you very much for your answer. The answer I wrote yesterday got lost somewhere in the flow of replying via a mail client, without using the correct subscription email I guess^^... Anyway, thank you for your answer, things are now back in order, it was indeed a problem with the core classes being present inside the shell application, which was unintended and due to some funky linked library settings ^^ But I definitely need to check these compilation options as I believe they can empower us with many extra possibilities, thanks for the tip.
Thanks again for your kind reply, have a nice day! cheers, J.