AttributeError: 'CFGDenoiserKDiffusion' object has no attribute 'inner_model'

Get this on a fresh install with no modifications. Please help.
Traceback (most recent call last):
File "D:\AI_Models\webui_forge_cu121_torch231\webui\modules_forge\main_thread.py", line 30, in work
self.result = self.func(*self.args, **self.kwargs)
File "D:\AI_Models\webui_forge_cu121_torch231\webui\modules\txt2img.py", line 110, in txt2img_function
processed = processing.process_images(p)
File "D:\AI_Models\webui_forge_cu121_torch231\webui\modules\processing.py", line 815, in process_images
res = process_images_inner(p)
File "D:\AI_Models\webui_forge_cu121_torch231\webui\modules\processing.py", line 958, in process_images_inner
samples_ddim = p.sample(conditioning=p.c, unconditional_conditioning=p.uc, seeds=p.seeds, subseeds=p.subseeds, subseed_strength=p.subseed_strength, prompts=p.prompts)
File "D:\AI_Models\webui_forge_cu121_torch231\webui\modules\processing.py", line 1285, in sample
self.sampler = sd_samplers.create_sampler(self.sampler_name, self.sd_model)
File "D:\AI_Models\webui_forge_cu121_torch231\webui\modules\sd_samplers.py", line 42, in create_sampler
sampler = config.constructor(model)
File "D:\AI_Models\webui_forge_cu121_torch231\webui\modules\sd_samplers_kdiffusion.py", line 34, in
sd_samplers_common.SamplerData(label, lambda model, funcname=funcname: KDiffusionSampler(funcname, model), aliases, options)
File "D:\AI_Models\webui_forge_cu121_torch231\webui\modules\sd_samplers_kdiffusion.py", line 75, in __init__
self.model_wrap = self.model_wrap_cfg.inner_model
File "D:\AI_Models\webui_forge_cu121_torch231\system\python\lib\site-packages\torch\nn\modules\module.py", line 1709, in __getattr__
raise AttributeError(f"'{type(self).__name__}' object has no attribute '{name}'")
AttributeError: 'CFGDenoiserKDiffusion' object has no attribute 'inner_model'

Start with the traceback path in modules/sd_samplers_kdiffusion.py at KDiffusionSampler.__init__, then trace sampler creation from modules/sd_samplers.py and the txt2img flow in modules/processing.py. Reproduce the fresh-install txt2img workflow and determine what is needed for sampler creation to complete without the reported AttributeError.

Written by the indexing model from the issue text.