Problem if the Dynamic Prompts extension is installed.

[ukharley]

Edited error is:

*** Error running process: \Stable Diffusion WebUI\extensions\sd-dynamic-prompts\scripts\dynamic_prompting.py
Traceback (most recent call last):
File "\Stable Diffusion WebUI\modules\scripts.py", line 832, in process
script.process(p, *script_args)
File "\Stable Diffusion WebUI\extensions\sd-dynamic-prompts\sd_dynamic_prompts\dynamic_prompting.py", line 480, in process
all_prompts, all_negative_prompts = generate_prompts(
File "\Stable Diffusion WebUI\extensions\sd-dynamic-prompts\sd_dynamic_prompts\helpers.py", line 93, in generate_prompts
all_prompts = prompt_generator.generate(prompt, num_prompts, seeds=seeds) or [""]
File "\Stable Diffusion WebUI\venv\lib\site-packages\dynamicprompts\generators\randomprompt.py", line 71, in generate
prompts.append(str(next(iter(gen))))
StopIteration

The only solution is to uninstall it. Disabling it still causes the error.