Pyramid Flux Video degrades with more than 9 frames

[YAY-3M-TA3]

I ported the Mac MPS changes to the latest code(Pyramid-flux) (My specs: 2023 Mac book pro, M2 24Gb, OS= Sonoma 14.7, Python 3.10.13)

text-to-video
prompt="A movie trailer featuring the adventures of the 30 year old space man wearing a red wool knitted motorcycle helmet, blue sky, salt desert, cinematic style, shot on 35mm film, vivid colors"
Rendering 16 frames gives this video which degrades after half way through... (384p flux model checkpoint from within 10 hours of this post)(render time:~2 hours)

541f21b9-e91d-4506-8769-c48bee425120_text_to_video_sample.mp4

However, if I only render 9 frames, everything is fine... (well, I guess the helmet glass and eyes are weird...)(render time: 3308 seconds)

9c5db34c-760a-454b-8394-411740452857_text_to_video_sample.mp4

[feifeiobama]

Sorry, we didn't encounter this in our tests. We will look into the problem soon.

[YAY-3M-TA3]

Sry - false alarm. On the previous test, I mistakenly set the guidance_scale to 9 instead of 7. Here is a second test with 16 frames, guidance_scale = 7, video_guidance_scale = 5 (took 7796 seconds to render)

8bc1699d-e3d2-47eb-b9e3-714f2033b826_text_to_video_sample.mp4

[feifeiobama]

Thank you for the update. Please let us know if there are other bad cases.

[YAY-3M-TA3]

I would say that faces tend to morph badly in most cases (face consistency - particularly in the eyes area) - both in my tests and the various videos I have watched in the issues thread...