This is the regular WAN workflow.

I only added the LORA named Lightx2v which is the Self Forcing LORA.

This LORA allows CFG of 1, Step 4 to produce a video. Without this lora, CFG 1 and Step 4 produces incomplete videos with artifacts.

Also, since CFG 1 will ignore negative prompts, I used KSamplerNAG so that the negative prompts will still apply even while using CFG 1.

If you don't want to use Lightx2v LORA, then bypass the LORA and replace the KSamplerNAG with the regular KSampler instead.