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training problem！

Status: Open.

#71 In Lightricks/LTX-2;

· mingtiannihao opened on Jan 15, 2026

Dataset preprocessor crashes when it tries to preprocess a video with mono audio.

Status: Open.

#70 In Lightricks/LTX-2;

· gitmylo opened on Jan 14, 2026

DGX SPARK keeps failing to install Flash Attention 3 in the LTX-2 UV

Status: Open.

#69 In Lightricks/LTX-2;

· wkc2005 opened on Jan 14, 2026

Loading Transformers For Second Stage in Two Stages Pipeline Raise Error

Status: Open.

#68 In Lightricks/LTX-2;

· fahadh4ilyas opened on Jan 14, 2026

nvfp4 checkpoint

Status: Open.

#65 In Lightricks/LTX-2;

· yashlanjewar20 opened on Jan 13, 2026

New attention method improve video by 41%!

Status: Open.

#64 In Lightricks/LTX-2;

· LifeIsStrange opened on Jan 13, 2026

SingleGPUModelBuilder

Status: Open.

#62 In Lightricks/LTX-2;

· DanRos22 opened on Jan 13, 2026

Question about the timestep source of cross-modality AdaLN gates in Fig. (b) vs. the current implementation (audio/video timesteps)

Status: Open.

#60 In Lightricks/LTX-2;

· mingtiannihao opened on Jan 13, 2026

the last frame of the video is sometimes completely blurred.

Status: Open.

#59 In Lightricks/LTX-2;

· Vickeyhw opened on Jan 13, 2026

Why cross-modal guidance is not being used?

Status: Open.

#58 In Lightricks/LTX-2;

· universome opened on Jan 12, 2026

Training LoRA using FSDP config

Status: Open.

#57 In Lightricks/LTX-2;

· hannalaguilar opened on Jan 12, 2026

Pose-driven video generation quality is extremely poor — requesting help / sanity check

Status: Open.

#54 In Lightricks/LTX-2;

· 0xLDF opened on Jan 12, 2026