Contacts which do not match criteria present in Segment

Hi,

I have around 5 million contacts which I have uploaded to Eloqua main contacts with 20 columns.

I created 2 data cards through which also adds contact with 5-7 different columns

I am trying to create a segment with following conditions

I dragged in "Compare Contact fields filter"

1) Contact should match this

AND

2) Contact should match this

AND

3) Contact should match this

AND

4) Has linked record in custom object (Data card 1) Condition

AND

5) Has linked record in custom object (Data card 2) Condition.

Now when i check the contacts that come up from this filter has few contacts which does not match all conditions. (Rather 2-3 contacts are not linked to Data card 2) But still appear in final filters.

Has anybody faced this issue before??

Can anybody help me put. I am going mad trying to figure out.