Definitely know that problem. Sometimes, I use just one term in lack of a better one that I’m not entirely happy with, and the LLM completely pinpoints on that and never lets go.
I call the problem “tuskification”. Because that one time, I discussed walrusses. And later in the same conversation, I had some other things drawn, entirely unrelated, many exchanges later. And somehow, it influenced all of that. E. g. there was a hamster in a cage as a small part of the drawing, and it had tusks. Or a thirsty lost person in a desert, you guessed it: Has tusks.
Got me to be like: Nonono, just draw completely normal people, who have absolutely no tusks! You wouldn’t believe the nightmare it drew after that. Apparently it interpreted it as: Humanoids whose faces resemble proboscidae from a time before they developed a full trunk and tusks.
Yes, but they are starting to improve on that. 2 years ago, you could have a lot of fun with prompts like “draw a room with absolutely no elephants in it”.