time series – Repeated For Loop on Different Inputs Showing Same Results

hope everyone is having a pleasant day.

I was just running the same For Loop on different input data and faced the problem that the result lists were all identical, despite the input data being different as shown in the image below (network1 and network2 are different datasets). I presume I am making a technical mistake, if anyone could help me out I’d greatly appreciate it.

Evl( ) is the For Loop command

First set:

Evl(Network1);
Evl1 = Evl;
Histogram({Evl1})

Second set:

Evl(Network2);
Evl2 = Evl;
Histogram({Evl2})

Basically organised in this order and tried plotting histograms of Evl1 and Evl2 which gave identical graphs that they shouldn’t.