** WARNING 98956 ** No contact between part and insert was detected. Checking the modeling of both part and insert is recommended.
Explanation
For Overmolding, it's very unlikely that the part and the insert are totally separated. Usually the part and the insert are overlapped in some areas.
Resolution
Make sure the separation between the part and the insert is less than (h1+h2)/2 in areas where they are in contact, where h1 and h2 are local thickness of the part and the insert, respectively.