Rider: viewing an List<> in Watches for debugging

hi,

im trying to add a List<> to my watchlist for debugging. Unfortunately I can not see the values that are added cause I get the massage that this Object is in an Zombistate.

Exception of HRESULT: 0x8013134F Errorcode: CORDBG_E_OBJECT_NEUTERED, or 0x8013134F.

Can someone help me? Could not find something about that on the web (or i did not know what to search for) :-)

Greetings

Alex