Face Fix - Save Crop Review Video

Face Fix - Save Crop Review Video is the boring node in the Face Fix set, and that's a compliment. Its entire job is to copy the already-encoded face-crop video into your project folder so you can actually watch the tracked crop - the thing LTX regenerated - without digging through ComfyUI's temp/output directories to find it. It's an output node (marked is_output_node), so it lives at the end of the branch and reports the path it saved to.

Why bother? The Face Fix workflow is long: prepare → enhance anchors → run LTX → composite. If the repaired face comes out wrong, you want to know fast whether the problem was the tracking or the regeneration. Reviewing the crop video in isolation - before it's composited back into the full frame - tells you that in seconds. This node is the "look at the raw material" step, and it's worth wiring in during your first few runs even if you skip it later.

The inputs

• source_video_path - the completed Face Fix crop video path from the earlier stage.
• output_folder - where the review copy goes. Leave empty to use a default, or point it at your project folder.
• filename - default face_fix_crop.mp4. Give it a descriptive name if you're keeping several runs around.

The output

• saved_video_path - the full path of the copy, so you can wire it into a save/display node or just read it off the node.

Mechanically it's a file copy (shutil.copy2), so the original is left untouched - this is strictly a "make a convenient second copy" node, not a re-encode. If the source path doesn't exist, it raises a clear error instead of silently doing nothing.

Installing it

Same as the rest of the pack: Manager → search vrgamedev, or:

cd ComfyUI/custom_nodes
git clone https://github.com/vrgamegirl19/comfyui-vrgamedevgirl.git

Restart and hard-refresh. No models, no extra dependencies - if the pack installed, this node works.

Common issues

• "Face Fix review source video was not found." The path you fed it isn't a real file - check the output of the node that produced the crop video and make sure you're feeding this its saved_video_path or equivalent.
• Wrong file in the project folder. It copies to output_folder with the basename of whatever filename you set. Same name twice = second copy silently overwrites the first.
• You can't see it anywhere. The output is a path string. Feed saved_video_path into a display node, or just open it in your file manager.

Not glamorous, but in a pipeline as long as Face Fix, a one-click review copy is exactly the kind of thing that saves you from burning a half-hour render on a tracking mistake.