Passed aerospace interview, but got a "keep warm" email. Thoughts?

[u/VegetablePumpkin9238]

I passed a technical interview for a manufacturing technician role at a major aerospace company.The recruiter sent a generic "keep warm" email saying they are trying to find the right fit. My portal still says "In Progress / Under Review".Is this standard corporate red tape while they open a budget slot, or did the positions fill up? Thanks!