Jami crashes on startup: Unable to initialize the Clutter backend: no available drivers found.

This was working last week. This is on Kubuntu 21.10.

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** Message: 08:04:30.181: Jami GNOME client version: 7695511b ** Message: 08:04:30.181: git ref: unknown

(jami-gnome:167893): Clutter-CRITICAL **: 08:04:30.497: Unable to initialize Clutter: Unable to initialize the Clutter backend: no available drivers found.

** (jami-gnome:167893): ERROR **: 08:04:30.497: Could not init clutter : -3

fish: “jami-gnome” terminated by signal SIGTRAP (Trace or breakpoint trap)