[Python] AttributeError: object has no attribute 'method'

I'm making a plugin for blender and I have some data types that contain drawing functions. However, when calling these functions on two specific classes, it throws an AttributeError

Traceback (most recent call last):
File "[REDACTED]/blender/4.2/scripts/addons/manifoldclothing/gen/GenPanel.py", line 17, in draw
context.active_object.manifoldHuman.maleBody.draw(layout, context)
File "[REDACTED]/blender/4.2/scripts/addons/manifoldclothing/data/FemaleBodyData.py", line 35, in draw
self.neck.draw(box, context)
^^^^^^^^^^^^^^
AttributeError: 'LongLimbData' object has no attribute 'draw'


LimbData:

import bpy

class LimbData(bpy.types.PropertyGroup):
length: bpy.props.FloatProperty(name="Length")

def draw(self, layout, context):
layout.prop(self, "length")


LongLimbData:

import bpy
from .LimbData import *

class LongLimbData(LimbData):
thickness: bpy.props.FloatProperty(name="Thickness")

def draw(self, layout, context):
super().draw(layout, context)
layout.prop(self, "thickness")



FemaleSpineData:

import bpy
from .LongLimbData import *

class FemaleSpineData(LongLimbData):
lowerWidth: bpy.props.FloatProperty(name="Lower Width")
upperWidth: bpy.props.FloatProperty(name="Upper Width")

def draw(self, layout, context):
super().draw(layout, context)
layout.prop(self, "lowerWidth")
layout.prop(self, "upperWidth")


FemaleBodyData:

import bpy
from .BodyData import *
from .FemaleChestData import *
from .FemaleHipData import *
from .FemaleThighData import *

class FemaleBodyData(BodyData):
hips: bpy.props.PointerProperty(type=FemaleHipData)
spine: bpy.props.PointerProperty(type=FemaleSpineData)
chest: bpy.props.PointerProperty(type=FemaleChestData)
neck: bpy.props.PointerProperty(type=LongLimbData)
head: bpy.props.PointerProperty(type=WideLimbData)

# OTHER FIELDS OMITTED

def draw(self, layout, context):
box = layout.box()
self.hips.draw(box, context)
self.spine.draw(box, context)
self.chest.draw(box, context)
self.neck.draw(box, context)
self.head.draw(box, context)

# OTHER DRAW CALLS OMITTED



But FemaleSpineData (which extends LongLimbData) can call super().draw(layout, context) just fine. It shows the extra property that LongLimbData defines.

I've made sure the indents are 4 spaces at least 5 times now. I also tried installing another version of blender to no avail.

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