We recently identified an issue which can, in some circumstances, prevent you from completing the fusion tutorial. Our developers are working to address this issue as swiftly as they can. In the meantime, please contact support through an in-game petition and we’ll be happy to provide a workaround.
You can open the petition interface by selecting “Help” in the main menu or by using /petition in your chat window. The next available Game Master will answer as soon as they can.