High CQI; 10% BLER; Low MCS

Hi Experts,

I am doing some data-collection on commercial T-mobile SA network in DFW area. I only have access to the UE logs and not the NW side logs.

I have noticed a case in which the CQI at the UE side is high (~12) but the MCS is quite low (2-3) and BLER is at 10%.

What could be the reason for this wierd behavior?