Security on shared members

Hi

We have following structure (simplified) in our Entity dimension:

• Entity
  • Structure 1
    • Sublevel A
      • Entity 1
      • Entity 2
      • Entity 3
    • Sublevel B
      • Entity 4
      • Entity 5
      • Entity 6
  • Structure 2
    • Sublevel C
      • Entity 1 (Shared)
      • Entity 2 (Shared)
      • Entity 4 (Shared)
    • Sublevel D
      • Entity 3 (Shared)
      • Entity 5 (Shared)
      • Entity 6 (Shared)

We also created access groups for every sublevel. These groups have write access to descendants (inclusive) of the corresponding sublevel. We now have a user that is part of both the access groups for sublevel A and sublevel C. However, this user is not able to see Entity 4 in the structure. How can we solve this? Is this expected behavior?

Kind regards