Hugging Face space duplicated only produces videos of max length of 6 seconds?

[AmoMTL]

Hi, I duplicated the HF space and running with a A100 GPU seems that the maximum length of the video that can be generated is 6 seconds, any idea why? I set the length (-L) to 0 and the length of the audio file is 18 sec yet the generated result is only 6 sec long.
Any help would be greatly appreciated, thanks