Version: Probably the latest.
OS: Windows
Prompt used: "A pencil-sketch using "only these colors", #0E512E, #5EBB47, #595959, #999999, #FFFFFF, #141414, fill randomly with geometric symbols relating to fitness, ageing, exercising, health, and lifestyle. Do not include pencils in the image".
Expected results: Image without pencils in it. Anything related to the symbols (geometric) requested - not an image full of cripple beings/aliens.
There must be a huge bug with Firefly prompts. Unless it becomes useful to ordinary humans, using ordinary language, this tech is not useful at all. Suggestion: Link it to a well-trained language model, and maybe it can begin to consider every detail in the prompt, not just the ones you think it should respond to.