Issues

• nnUNetv2_preprocess_like_nnssl -am no_resample crashes in DefaultPreprocessor with TypeError on None spacing

  bugneeds-maintainer
  MIC-DKFZ/nnUNet#3076 · Filter by author XwK-P opened on Oct 1, 2026
  1

  

• load_pretrained_weights shape-mismatch error message prints the entire weight tensor instead of the expected shape

  bugneeds-maintainer
  MIC-DKFZ/nnUNet#3074 · Filter by author unclekun12138 opened on Sep 30, 2026
  1

  

• [Feature Request]: tiff compression of saved predictions

  enhancement
  MIC-DKFZ/nnUNet#3069 · Filter by author oceanites opened on Sep 16, 2026
  1

  

• TypeError: nnUNetTrainer.__init__() takes from 5 to 6 positional arguments but 7 were given

  question
  MIC-DKFZ/nnUNet#3066 · Filter by author ngvananh2508 opened on Sep 11, 2026
  2

  

• Discussion: batched GPU data augmentation

  MIC-DKFZ/nnUNet#3063 · Filter by author edomerli opened on Sep 7, 2026
  

• --val --val_best fails when checkpoint_final is missing

  bugneeds-maintainer
  MIC-DKFZ/nnUNet#3056 · Filter by author hajteyib opened on Jul 20, 2026
  2

  

• ignore index included in foreground when calculating dataset fingerprint

  bugneeds-maintainer
  MIC-DKFZ/nnUNet#3055 · Filter by author c-winder opened on Jul 19, 2026
  1

  

• Segmentation fault (core dumped)

  bugneeds-maintainerneeds-repro
  MIC-DKFZ/nnUNet#3051 · Filter by author buckshuang opened on Jul 7, 2026
  3

  

• Discussion: optional RankSEG-style decoding support for nnU-Net inference

  MIC-DKFZ/nnUNet#3050 · Filter by author Leev1s opened on Jul 4, 2026
  7

  

• All classes climb to EMA pseudo-Dice ~0.06 by epoch ~55, then collapse back to ~0 by epoch 1000 (extremely sparse multi-class MRI)

  MIC-DKFZ/nnUNet#3048 · Filter by author andrubrown opened on Jul 2, 2026
  2

  

• [Feature Request] Optional Visualization / Debug Mode for Preprocessing and Training.

  feature request
  MIC-DKFZ/nnUNet#3023 · Filter by author VAIDEHI-28 opened on Apr 20, 2026
  3

  

• MedNeXt-v2 Resources

  question
  MIC-DKFZ/nnUNet#3022 · Filter by author shahdhardn opened on Apr 20, 2026
  3

  

• Advice on training strategy: Large dataset (>6000 images),

  question
  MIC-DKFZ/nnUNet#3010 · Filter by author valdemarbang opened on Apr 2, 2026
  3

  

• Error during preprocessing with latest version (2.6.4), fixed by downgrading

  MIC-DKFZ/nnUNet#3003 · Filter by author garance-thv opened on Mar 18, 2026
  10

  

• Clarification regarding community contributions and pending PRs

  MIC-DKFZ/nnUNet#2997 · Filter by author Borda opened on Mar 8, 2026
  1

  

• Advice on integrating custom intensity augmentation into nnU-Net

  question
  MIC-DKFZ/nnUNet#2986 · Filter by author Le0p opened on Feb 6, 2026
  5

  

• model archetecture

  MIC-DKFZ/nnUNet#2984 · Filter by author ashwinimate opened on Feb 3, 2026
  1

  

• advice on creating ground-truth

  MIC-DKFZ/nnUNet#2981 · Filter by author mocherry23 opened on Jan 23, 2026
  1

  

• Low dice on test data only

  MIC-DKFZ/nnUNet#2968 · Filter by author sourXi opened on Dec 23, 2025
  2

  

• Release MedNeXt-v2 on Hugging Face

  MIC-DKFZ/nnUNet#2966 · Filter by author NielsRogge opened on Dec 22, 2025
  3

  

• CUDA Out of Memory during 3d_fullres inference on RTX 5090 (32 GB VRAM, Windows/WDDM)

  MIC-DKFZ/nnUNet#2963 · Filter by author jdmerkur opened on Dec 17, 2025
  4

  

• Unable to export nnUNetPredictor for Triton Deployment

  question
  MIC-DKFZ/nnUNet#2954 · Filter by author Faisasa12 opened on Nov 30, 2025
  2

  

• Warning: No spacing information found in dataset properties. Using default spacing [1. 1. 1.]

  MIC-DKFZ/nnUNet#2937 · Filter by author Redbird-11111 opened on Nov 5, 2025
  1

  

• [Bug] Validation fails with OOM on GPU and ArrayMemoryError on CPU fallback (nnU-Net v2, Windows 10, RTX 3060, 16GB RAM)

  MIC-DKFZ/nnUNet#2912 · Filter by author ayusakoc opened on Sep 29, 2025
  12

  

• nnUNet comparison to MedSegX

  MIC-DKFZ/nnUNet#2904 · Filter by author karllandheer opened on Sep 12, 2025
  1