category not always displayed in breadcrumb

Hi,

i'm opening here another post about category name that is not displayed in breadcrumb in a certain condition.
for example i have a module that displays all categories including a category displaying all products. so have something like:

Shops
- All (displays list of all products)
- Blue displays list of all blue products)
- Red (displays list of all red products)

when user clicks on "Blue" or "Red" category, the breadcrumb shows correctly e.g.: Shop > Blue and display all blue products. If user clicks on a particular blue product, breadcrumb displays: Shop > Blue > the blue clicked product name (so it's correct)

however, if user selects ALL, the breadcrumb doesn't display: "Shop > All" but only "Shop". If user clicks on a particular product, at this moment breadcrumb shows: "Shop > Clicked product name". So it is not working.

i checked if the "content menu" for ALL had something different than other contents menu, but everything is the same (except the "Sub elements filter" that must be set to all subelements for ALL menu item).

so any idea what i'm doing wrong ?
thx

Unfortunately no, it is on my local development machine. sorry.

I've seen a similar issue with a site I'm working on, but it's not 'live' yet and the shop is only visible to admins for now.