Same

also the blueprint cheat doesn't work either

FYI we got ours to work. Our private server had been set up with the mods being activated by a command line addition. However, when we removed the mod lines from the command line, and instead activated the mods via adding them to the GameUserSettings.ini - it worked perfectly! The dragons all spawn correctly, the dossier entry is there, and the saddle / armor engrams are available.