Troubleshooting Prompt Issues in ComfyUI WAN for Text-to-Video

ComfyUI users have reported difficulty generating consistent results from simple prompts when using the WAN feature. A common example is the prompt “man climbs up out of the pool,” which produces erratic behavior such as the character hesitating, climbing down the ladder, and then climbing back up. The issue appears to stem from the model’s inability to adhere to the prompt’s intent, likely due to insufficient CFG scaling or prompt complexity. Users are encouraged to experiment with CFG values, as higher CFG can enforce stronger adherence to the prompt. Engaging with the ComfyUI Discord community can provide alternative prompt formulations and troubleshooting tips. Many developers find that prompt engineering, rather than a single setting change, is required to achieve reliable outputs. The community suggests that prompt length and specificity significantly influence the model’s behavior. Finally, patience and iterative testing remain essential, as AI generation often requires trial and error before achieving stable results.