Issue with merging streams with debounce

Effect.gen(function* (_) {
  const stream1 = Stream.fromIterable([1, 2, 3, 3, 5]).pipe(
    Stream.schedule(Schedule.spaced('1 second')),
    Stream.debounce('200 millis'),
    Stream.tapErrorCause(Console.error)
  )

  const stream2 = Stream.fromIterable(['a', 'b', 'c']).pipe(
    Stream.schedule(Schedule.spaced('500 millis'))
  )

  const combined = Stream.merge(stream1, stream2)

  yield* _(Stream.runForEach(combined, (a) => Console.log(a)))
})

a
b
1
{
  _id: 'Cause',
  _tag: 'Sequential',
  left: {
    _id: 'Cause',
    _tag: 'Sequential',
    left: { _id: 'Cause', _tag: 'Empty' },
    right: { _id: 'Cause', _tag: 'Interrupt', fiberId: [Object] }  },
  right: {
    _id: 'Cause',
    _tag: 'Sequential',
    left: { _id: 'Cause', _tag: 'Empty' },
    right: { _id: 'Cause', _tag: 'Interrupt', fiberId: [Object] }
  }
}