# Slicer frozen when loading large MR volume (\>1GB)

**URL:** <https://discourse.slicer.org/t/slicer-frozen-when-loading-large-mr-volume-1gb/43483>\
**Category:** Support\
**Created:** [June 25, 2025, 1:17pm UTC](https://discourse.slicer.org/t/slicer-frozen-when-loading-large-mr-volume-1gb/43483 "2025-06-25T13:17:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![joved81744](https://avatars.discourse-cdn.com/v4/letter/j/ce7236/32.png) [@joved81744](https://discourse.slicer.org/u/joved81744)\
**Post date:** [June 25, 2025, 1:17pm UTC](https://discourse.slicer.org/t/slicer-frozen-when-loading-large-mr-volume-1gb/43483/1 "2025-06-25T13:17:10Z")

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Hey guys… 👋

Slicer (v5.2.2) crashes or freezes when I load a large MR volume (1.2 GB NIfTI). The progress bar gets stuck at ~30 %, and no console errors appear. Restarting works, but fails again on the same file.

Things I have tried:

- Converted NIfTI to compressed (.nii.gz) – same issue
- Increased “–max-memory” via command line
- Tested on two different workstations (16 GB, 32 GB RAM)

I also joined [flutter training in chennai](https://www.igmguru.com/digital-marketing-programming/flutter-training-in-chennai) Has anyone faced this? Any suggestions on config flags, debug logs, or memory settings I’m missing?

Thanks in advance… 😊

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [June 25, 2025, 4:23pm UTC](https://discourse.slicer.org/t/slicer-frozen-when-loading-large-mr-volume-1gb/43483/2 "2025-06-25T16:23:15Z")

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> [@joved81744](#):
>
> Slicer (v5.2.2) crashes o

Please try with the latest stable (5.8.1) or the preview version first, and then report. 5.2.2 is few years old, not developed anymore.