Interferogram formation and Multi-looking

Dear all,

I did the InSAR processing for five earthquakes in different locations. I faced an issue. When I change Coherence Range Window Size to 18, another one must change to 5 but It changes to 4. Most importantly, in Multi-looking, when I change Number of Range Looks to 6, another option, Number of Azimuth Looks should change to 2 automatically but it remains in 1. Why? I am worried about these two issues and getting the wrong results. It is interesting that it happens only for ascending orbit of one earthquake and both orbits of another earthquake but for two other ones, it is correct. Could you please guide me?

Best regards,