After adding The Birds & the Bees mod, I get this yellow warning which, I think, belongs to this mod:

BodyDef AIPawn has BodyPartRecord of AIPawn_Thorax whose children have more or equal total coverage than 1. This means parent can't be hit independently at all.
Verse.Log:Warning(String)
Verse.BodyDef:CacheDataRecursive(BodyPartRecord)
Verse.BodyDef:ResolveReferences()
Verse.DefDatabase`1:ResolveAllReferences()
System.Reflection.MonoMethod:InternalInvoke(Object, Object[], Exception&)
System.Reflection.MonoMethod:Invoke(Object, BindingFlags, Binder, Object[], CultureInfo)
System.Reflection.MethodBase:Invoke(Object, Object[])
Verse.GenGeneric:InvokeStaticMethodOnGenericType(Type, Type, String)
Verse.PlayDataLoader:DoPlayLoad()
Verse.PlayDataLoader:LoadAllPlayData(Boolean)
Verse.Root:<Start>m__84E()
Verse.LongEventHandler:RunEventFromAnotherThread(Action)
Verse.LongEventHandler:<UpdateCurrentAsynchronousEvent>m__84C()

Testing Mod List：
Core
HugsLib
Mod List Backup
Misc.MAI
Misc.Robots
Misc.Robots++
The Birds & the Bees