Thank you for playing and for the video. I think I see what happened now.
During the breakthrough state, the player is supposed to click the planet core to push the transformation forward, but that interaction clearly was not communicated well enough. So you were not doing anything wrong. The game did not make the next step obvious.
I’m going to improve this in two ways: first, I’ll make the breakthrough prompt clearer so it tells players to click the planet core, and second, I’m adding a failsafe so that if the stage goal has already been reached, the player cannot get stuck there forever if the interaction is missed or the fragments do not merge correctly.
I really appreciate the report and the video. It helped me see that this is both a tutorial/communication issue and a softlock issue.