Form field name isn't reflected in Form Submission Data

As it turns out, Webflow says that this is a known bug. Here’s their work-around (which I haven’t implemented yet):

We can add a name to our Form Field element by taking the following steps:

  1. Select your form-input element
  2. In the Element Settings panel (D) add a Custom Attribute. In the Name field enter data-name. under Value add the name you’d like to use for your field: View screenshot [:arrow_upper_right:]
  3. Publish your project