This mod is not the cause of that problem; I have checked the code injection for the version of this mod compatible with Arics mod. While it does touch the same function as the one that assigns the traits for 'Perfect Specimen', there are no problems nor any overlap between the two sets of code. The source of your problem is most like Aric's mod itself as the most recent version is a buggy mess.
Though, I will add that the topic title still says v2, but v3 is currently available.
Viewing post in MarriageAndMore mod v3
hi, I can guess that you are referring to the ''MarriageAndMore_arics1.7_v3.rar'' file mod that you can download now, it is this version that I used and I saw the problem, and yes, after deactivating it and trying a game without the ''MarriageAndMore_arics1.7'' mod, the slave appeared with the corresponding traits as 'Perfect Specimen'. PD: the only thing I see as a bug in the aric mod so far is related to the active research of the crystal.