TypeError: Cannot read properties of undefined (reading 'split'); react-table v8 / Vercel preview site

[TrentHurlbut]

I am using react-table v8. When I open my application locally, everything works fine. However, when I deploy to a Vercel preview site, I get this error TypeError: Cannot read properties of undefined (reading 'split'). I have isolated the problem to the table body and possibly the getRowModel() or flexRender() methods. Any idea why this is happening? The data that the table is trying to render locally and on the deployed site is identical (same shape, same content).

[TrentHurlbut]

Update: the issue appears to be with flexRender(). When I console.log the results of flexRender(cell.column.colDef.cell, cell.getContext()) on the deployed site and my local environment, the results are slightly different:

Deployment

vs.

Local

It seems as though the parameters in the type function are describe slightly differently? Is this anything? I feel like I'm grasping at straws here.