Just following up quickly with a discussion over in Views:
>Undefined index: commerce_product in views_handler_field_field->access()
We're currently wondering if this could be something similar to another issue encountered previously (already closed):
Notice: Undefined index: commerce_product in field_views_field_default_views_data()
If anybody using commerce stumbles on this issue, I detailed how I managed by-passing the problem:
The problem is clearly explained in that ticket and it seems I wasn't the only one to encounter it.
I thought perhaps this could be of help to others and maybe get some potential developers to narrow down the problem to try to come up with a patch, if any would be needed.
Maybe this ticket should be marked as duplicate and the original post (http://drupal.org/node/1477054) should be moved over from Views to the Drupal Commerce module tracker.
Any feedback on this issue would be greatly appreciated.
Thanks for your help in advance.