Shared IP that is part of a VIP causing problems listing VIP and deleting equipment association

OBS: Dois equipamentos podem ter o mesmo IP cadastrado. Isso é o esperado para IP<>equipamentos.
It is expected an IP to be registered to one or more equipments.
The problem occurs when we add this shared IP to a VIP (Virtual Server - LB). When listing this VIP, we get the error "Falha ao acessar a fonte de dados. (Database failure).". As the VIP pool member is related to an IP, the issue is possibly because the NetworkAPI tries to find a unique equipment to this VIP but it gets more than one.
If the IP is registered to more than one equipment, the VIP has to show them all.

Another problem: I tryed to delete the association of one of the servers but it does not let me do that. When I tryed to do that, it gave the me error:

"Não foi possível excluir o ip de id 42002 pois ele está sendo usado em uma requisição VIP."

I am not trying to delete the IP itself. It should still be registered in the DB for the other equipment and this error should not happen.