There is a slight incompatibility between your mod and MSE2 - Core
MSE2 - Core adds sub-parts to Tech Hediffs so a bionic Hand would keep it's fingers.
In your assembly you add use addHediff rather than RimWorld.PawnTechHediffsGenerator.InstallPart or pawndef the result of this is your ArchoTech parts are added correctly but the Bionic ones are not.
Here is an image to show the inconstancy : Image [imgur.com]

Could you please change to either RimWorld.PawnTechHediffsGenerator.InstallPart or pawndef so that our two mods could be more compatibility.
Thank you for your time.