WAN Start End Frame + Upscaling

Comfy workflow with start and end frame + upscaling. No TeaCache.

This workflow is a very straifghtforward adaption of /model/1400194/wan-21-start-end-frames-native-workflowgguf. All credit goes to @Flow2 .

I've removed TeaCache as it's degrading most of the Loras i use and inserted upscaling to 720p.