Icclude issue in .net core 6

[dapns]

Description

When "include" a child table its giving me the error: "The call is ambiguous between the following methods or properties"

Steps to reproduce

Two master table model ; --> "t_User", "t_Role"
One Relation table --> "t_Rel"
"t_Rel" have --> one to one --> "t_User" & "t_Role"
"t_User" & "t_Role" have --> one to many --> t_Rel

Expected result

Actual result