particleSystem: Death sub emitters not working

Death sub emitter not emitting anything.
Is it expected to emit on position of disappeared particle?

The difference seems to be the emission burst which is automatically set for the sub emitter.

I’ve managed to get it work somehow.
You have to click small “+” right to the name of a sub emitter. It creates default particle system, which simply works. Now my meteor shower looks perfect (flying rocks, smoke, explosions).