Thanks a lot Branvex, for your help. My issue so far is not really this. My issue is that, reverse engineering that GEN_Transfert code (it took me a long time to get it, because it is used both as a check and set flag, and you have to create a specific DB to have it working), by studying Larians, as you said, I finally had it to work, with origins as a parent. Then, withous origin as a parent, with every thing the same (same DB, same set up, same everything), this wouldn't work anymore. So I spent some time trying to understand, but that Osiris stuff is so fucked up, I couldn't. So the rage.
Thanks anyways.