Grid/Suggest Outputting the Same Value Over and Over Or Not At All

Here's my field:

crew:
    type: grid
    display: Crew
    starting_rows: 1
    min_rows: 1
    required: false
    fields:
      crewmember:
        type: suggest
        members:
          label: username
          value: _uid
        display: Crewmember
        width: 50%
      crewposition:
        display: Position
        type: suggest
        create: true
        options:
          - Producer
          - Director
          - 1st Assistant Director
          - Director of Photography
          - Sound Mixer
          - Art Director
          - Gaffer
          - Key Grip
          - 1st Assistant Camera
          - Grip/Electric
          - Grip
          - Electric
          - 2nd Assistant Camera
          - Makeup Artist
          - Hair Stylist
          - Editor
          - Animator
          - Designer
        width: 50%

And here's my template code:

{{ if crew }}

<section class="page-section">
  <div class="wrap">
  <div class="row">

<h2>Crew</h2>

<table class="rwd-table">

{{ crew }}

  <tr>
    <td data-th="Position">{{ crewposition }}</td>
    <td data-th="Crewmember">{{ member:profile _uid="{crewmember}" }}<a href="{{ link }}">{{ first_name }} {{ last_name }}</a>{{ /member:profile }}</td>
  </tr>

{{ /crew }}

</table>



  </div>
  </div>
</section>

{{ /if }}

Thanks so much for the help.