ostris

Issues somebody may already be working on are listed last. List everything by date

• Bug: Prodigy 8-bit optimizer state fails to restore due to Auto8bitTensor deserialization error

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  Difficulty 2/5 1-3 hours Newbie friendliness 72/100

  ostris/ai-toolkit#1076 · Opened Oct 10, 2026

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• Qwen-Image-2.1 LoRA: img_mlp lora_B stays exactly zero in all checkpoints (attention adapters train fine)

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ostris/ai-toolkit#1075 · Opened Oct 10, 2026

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• convrot int8 problems (windows)

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  ostris/ai-toolkit#1074 · Opened Oct 7, 2026

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• Minimax-H3, create LoRA for Text Encoder - for a very long time

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ostris/ai-toolkit#1071 · 1 comment · Opened Oct 2, 2026

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• Krea 2 train on RAW preview on Turbo

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  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  ostris/ai-toolkit#1070 · Opened Oct 1, 2026

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• Chroma training slowdown after update: ~5 s/it → 130–300 s/it until job is recreated

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ostris/ai-toolkit#1066 · Opened Sep 26, 2026

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• YuE2: SheetSage2 remote code is loaded unpinned, and the ABC repair path skips upstream's chord spelling

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  Difficulty 3/5 1-2 days Newbie friendliness 70/100

  ostris/ai-toolkit#1064 · Opened Sep 25, 2026

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• Microsoft ADPCM WAVs load at a fraction of their length (audio comes out sped up) through torchaudio.load

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  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  ostris/ai-toolkit#1063 · Opened Sep 24, 2026

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• Stop Job CAN resume later. not working

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  ostris/ai-toolkit#1058 · 3 comments · 1 reaction · Opened Sep 22, 2026

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• Krea 2 - Qwen2.1 LoRA + Layer Offloading bug

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  Difficulty 4/5 3-5 days Newbie friendliness 22/100

  ostris/ai-toolkit#1057 · 1 comment · Opened Sep 21, 2026

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• Bug: Zero-gradient deadlock when expanding LoRA/DoRA rank (New capacity remains completely unused)

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  Difficulty 2/5 1-3 hours Newbie friendliness 78/100

  ostris/ai-toolkit#1056 · 1 reaction · Opened Sep 21, 2026

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• Dataset caches thumbnail previews even when replacing them

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  Difficulty 3/5 1-2 days Newbie friendliness 55/100

  ostris/ai-toolkit#1051 · Opened Sep 18, 2026

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• MiniMax-H3 ref2va training: clean hang on first step with triton; OOM at load without triton (RTX 5090 32GB, Windows, torch 2.14+cu130)

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  Difficulty 5/5 Over a week Newbie friendliness 15/100

  ostris/ai-toolkit#1050 · Opened Sep 18, 2026

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• `split_model_over_gpus` + LoRA training on multi-GPU: five independent device/signature bugs break FLUX LoRA runs (16 GB cards)

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  Difficulty 5/5 Over a week Newbie friendliness 15/100

  ostris/ai-toolkit#1048 · Opened Sep 17, 2026

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• One stuck `running` job row permanently clogs the queue — worker trusts exit code 0 and never reaps dead/hung jobs

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  ostris/ai-toolkit#1047 · Opened Sep 17, 2026

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• Auto-captioning audio fails with 'NoneType' object has no attribute 'device' in low-VRAM mode

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  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  ostris/ai-toolkit#1043 · Opened Sep 15, 2026

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• Krea 2: q/k/v dtypes can diverge under gradient checkpointing, breaking backward

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  Difficulty 3/5 1-2 days Newbie friendliness 65/100

  ostris/ai-toolkit#1041 · Opened Sep 13, 2026

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• ever since the update z-image lora training stopped working

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  Difficulty 4/5 3-5 days Newbie friendliness 18/100

  ostris/ai-toolkit#1038 · Opened Sep 11, 2026

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• Windows: stale cron worker survives UI shutdown, breaks next startup with EPERM on prisma generate

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  Difficulty 2/5 1-3 hours Newbie friendliness 78/100

  ostris/ai-toolkit#1033 · Opened Sep 9, 2026

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• ai-toolkit 0.3.6 starts ok - New job start - Lora creation - Krea-2 (raw) - but it is VERY slow. Sometimes it works. No changes.

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  Difficulty 4/5 3-5 days Newbie friendliness 15/100

  ostris/ai-toolkit#1032 · 3 comments · Opened Sep 8, 2026

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• Bug Report: Ideogram 4 training fails during transformer dequantization

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ostris/ai-toolkit#1030 · 2 comments · Opened Sep 5, 2026

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• train_lora_omnigen2_24gb.yaml: unterminated string breaks YAML parsing

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  Difficulty 1/5 Under an hour Newbie friendliness 90/100

  ostris/ai-toolkit#1029 · Opened Sep 4, 2026

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• [Bug] training_adapter field ignored in headless yaml for Z‑Image‑Turbo

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  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  ostris/ai-toolkit#1027 · Opened Sep 3, 2026

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• LTXV Audio Training even though do_audio is set to False

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  Difficulty 3/5 1-2 days Newbie friendliness 50/100

  ostris/ai-toolkit#1020 · 4 comments · Opened Aug 27, 2026

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• Anima res 1280 - Sizes of tensors must match except in dimension 3

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  Difficulty 4/5 3-5 days Newbie friendliness 32/100

  ostris/ai-toolkit#1019 · Opened Aug 25, 2026

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• Crash training video when offload active

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ostris/ai-toolkit#1013 · Opened Aug 14, 2026

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• torch.compile fails with record_stream after commit d184c6c

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  ostris/ai-toolkit#1012 · Opened Aug 13, 2026

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• New Version is 14x slower then the one with the torchao error

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  Difficulty 4/5 3-5 days Newbie friendliness 15/100

  ostris/ai-toolkit#1007 · 8 comments · Opened Aug 11, 2026

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• Just very tiny thing: "Cache Text Embeddings" Info balloon needs an update

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  Difficulty 1/5 Under an hour Newbie friendliness 65/100

  ostris/ai-toolkit#1006 · 1 comment · Opened Aug 11, 2026

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• 80GB of virtual memory needed to train Klein 9B

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ostris/ai-toolkit#1003 · 4 comments · Opened Aug 9, 2026

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• MiniMax-H3: official non-pruned transformer weights fail to load on 0.12.8

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  Difficulty 3/5 Half a day Newbie friendliness 55/100

  ostris/ai-toolkit#1001 · 1 comment · Opened Aug 8, 2026

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• get_lr_scheduler's diffusers fallback cannot succeed: both reachable SchedulerTypes fail on the injected total_iters

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  Difficulty 3/5 Half a day Newbie friendliness 58/100

  ostris/ai-toolkit#996 · Opened Aug 7, 2026

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• torchcodec version 0.9.1 is no longer compatible with PyTorch version 2.13.0. I hope the author fixes this and also checks for potential issues with environment dependencies for other specified versions.

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  Difficulty 3/5 1-2 days Newbie friendliness 40/100

  ostris/ai-toolkit#994 · 1 comment · Opened Aug 7, 2026

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• Qwen image edit 2509 sigkill

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  Difficulty 4/5 3-5 days Newbie friendliness 15/100

  ostris/ai-toolkit#993 · 1 comment · Opened Aug 5, 2026

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• Out of Memory at "Generating baseline samples before training"

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  Difficulty 4/5 3-5 days Newbie friendliness 15/100

  ostris/ai-toolkit#992 · Opened Aug 4, 2026

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• H3 loRA fine-tuning but generated videos are pure noise

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  Difficulty 4/5 3-5 days Newbie friendliness 20/100

  ostris/ai-toolkit#991 · 10 comments · 4 reactions · Opened Aug 4, 2026

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• Severe VRAM regression / OOM with Krea 2 training after PyTorch 2.13 update

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  Difficulty 4/5 3-5 days Newbie friendliness 20/100

  ostris/ai-toolkit#990 · 7 comments · 1 reaction · Opened Aug 3, 2026

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• FLUX.2 Klein 9B qfloat8 block quantization repeatedly triggers CUDA unknown/GPU loss during CPU→GPU block transfers on RTX 5090 + WSL2

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  Difficulty 4/5 3-5 days Newbie friendliness 20/100

  ostris/ai-toolkit#989 · Opened Aug 1, 2026

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• [SOLVED] LECO Slider LoRA Training Is Impossible Due to Two Year Old 'NoneType' object has no attribute Bug

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  Difficulty 4/5 3-5 days Newbie friendliness 22/100

  ostris/ai-toolkit#983 · 1 reaction · Opened Jul 28, 2026

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• Multiple checkpoints deleted automatically with continued training

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  Difficulty 3/5 1-2 days Newbie friendliness 65/100

  ostris/ai-toolkit#981 · 3 comments · Opened Jul 28, 2026

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• About the pixel alignment task of training krea2 edit lora

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  Difficulty 5/5 Over a week Newbie friendliness 15/100

  ostris/ai-toolkit#980 · Opened Jul 28, 2026

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• Mage-Flow LoRA training fails with batch_size > 1 (LoRA multiplier assumes batch is dim 0)

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  Difficulty 2/5 1-3 hours Newbie friendliness 70/100

  ostris/ai-toolkit#977 · Opened Jul 26, 2026

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• Stuck "Stopping job..." after power loss / dead PID — stop handler never marks job stopped

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  Difficulty 3/5 1-2 days Newbie friendliness 65/100

  ostris/ai-toolkit#976 · 1 comment · Opened Jul 25, 2026

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• LTX2 LoRA training completes successfully but generated LoRA contains only zero weights

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  Difficulty 4/5 3-5 days Newbie friendliness 20/100

  ostris/ai-toolkit#975 · Opened Jul 25, 2026

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• AttributeError: 'NoneType' object has no attribute 'dataset_config'

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  Difficulty 3/5 1-2 days Newbie friendliness 52/100

  ostris/ai-toolkit#973 · Opened Jul 24, 2026

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• convrot8 qtype_te fails with 3D tensor during text embedding caching on Windows (Qwen3-VL text encoder)

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  Difficulty 2/5 1-3 hours Newbie friendliness 64/100

  ostris/ai-toolkit#971 · Opened Jul 23, 2026

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• Why does the UI store config in a database instead of a yaml file in the config directory

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  Difficulty 5/5 Over a week Newbie friendliness 18/100

  ostris/ai-toolkit#970 · 4 comments · Opened Jul 23, 2026

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• alpha type mismatch when alpha is a scalar (in result)

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  Difficulty 2/5 1-3 hours Newbie friendliness 55/100

  ostris/ai-toolkit#969 · Opened Jul 22, 2026

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• Attempting to train Krea2 causes fatal error "Job process terminated with exit code 1."

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  Difficulty 2/5 1-3 hours Newbie friendliness 45/100

  ostris/ai-toolkit#968 · 1 comment · Opened Jul 21, 2026

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• AssertionError: block_size mismatch (6144) during backward with layer_offloading + qfloat8 quantization on Krea2

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  ostris/ai-toolkit#954 · 28 comments · 1 reaction · Opened Jul 16, 2026

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