$KeepLogDivergentScalelessIntegrals is an experimental
global option that forces FeynCalc not to set 1-loop integrals of type
\frac{1}/{q^4} to zero. This is useful
when one has to explicitly distinguish between IR- and UV-divergences in
dimensional regularization. Notice that OneLoop is not guaranteed to
respect this option.
$KeepLogDivergentScalelessIntegrals\text{False}