"Set column values" workflow step — Row/table dropdown won't open (Webhook-triggered workflow)

I’m building a workflow with a Webhook trigger → “Set column values” action. The “Row” field on the “Set column values” step doesn’t respond to clicks at all — the dropdown never opens.

I’ve tried the following, with no change:

  • Hard refresh and resetting browser zoom to 100%
  • Maximizing/resizing the browser window
  • Deleting and recreating the “Set column values” step from scratch
  • Testing in Incognito mode with all extensions disabled
  • Creating a brand new test table to rule out an issue with an existing table’s schema — same result, dropdown still doesn’t open

The Webhook trigger step itself works fine and correctly shows its URL, bearer token, and test data — the issue is isolated specifically to the “Row” field on the step immediately after it.

Has anyone else run into this, or know of a workaround?

Thanks!