I set a new product and gave it a shopper group.
When I was in the products display I could not see the product which is correct but it is showing in the breadcrumbs. see the image attached.
I added the extra example just to show where it turns up - I do realize that the two examples have different names ( I'm just using the second as an example where it appears). I did clone the original- then deleted it after the test.
[attachment cleanup by admin]
Just tested updated version F -
I can still see - items in breadcrumbs that are hidden from certain shopper (groups).
Thx, found and fixed.