动态时，Modal设计的rc-time-picker位置错误

Question

  <div>
    <Button onClick={() => this.setState({ show: true })}>Open</Button>
    <Modal
      show={this.state.show}
      onHide={() => this.setState({ show: false })}
      animation={true}
    >
      <Modal.Header closeButton>
        <Modal.Title>Modal</Modal.Title>
      </Modal.Header>
      <Modal.Body>
        <TimePicker open getPopupContainer={triggerNode => triggerNode.parentNode}/>
        <div style={{ height: '370px' }} />
      </Modal.Body>
    </Modal>
  </div>

启用动画后，它会变为https://i.imgur.com/0r1aULs.png

没有动画：https://i.imgur.com/YTdF8rT.png

有任何线索如何解决？