Medusa died - old age.
I suppose it was inevitable, she's been on the go for quite a while. In fact I've forgotten how many generations there's been since we got it/them, way back here.
Identified, quiet early on, as "Tillandsia caput-medusae is easy to care and spreads with snake-shaped leaves exotic flair "
I think the last flowering would have been about five years ago.
I have a couple sitting homeless, I might just add one of them.
The "middle" one was judged DoA by A. N. Other in the 1st month or so and replaced. The one you can't quite, properly see must have had, quite literally between 1 & 2 dozen pups; and even it's looking, like me, a bit past its best.