UD dev ggufs are causing the following issues
Just wanted to bring it to your attention that from my testing (various t2v and i2v tests) ive notice these factors come into play a majority of the time:
-glitch frames. Theres multiple instances, especially in max frame counts or 141-ish area, where it appears to sort of glitch or blur for 1 frame then realign back to clarity.
-an overexposure of skin texture. Almost as if everyone has acne, less of the time but still exists. Especially on close-up zooms in with the camera to the face.
-Anything with rain becomes neon artifact rain, almost like electric sparks falling from the sky. It doesnt happen all the time but it does happen.
-the end frames seem to morph the subject in a ridiculously wild manner. Not as prominent as the other issues but those exist too.
I am not by my pc at the moment but when i get home ill provive examples with workflow details! I only bring this to your attention so you can hopefully correct it for others! 🫶
Hi if you can send the workflows, happy to investigate.
heres a few examples, some of the issues i explained are present in the videos.
Found a simple fix, I had the same issues but it also occurred with any ltx-2.3 model, I tried some stuff and figured out that the temporal_size in the tiled vae decode seems to be the cause, it seems that splitting the amount of frames to decode at once is bad, so as long as its above your frame count then these issues go away.
I tried the new UD Dev model and I never encounter any of these issues. It could be your workflow settings. You can try other workflows and see if you still see these issues.
Replace VAE Decoder (Tiled) with this one: