# How to fix the cracking the window when I changed the opacity from the segmentation result?

**URL:** <https://discourse.slicer.org/t/how-to-fix-the-cracking-the-window-when-i-changed-the-opacity-from-the-segmentation-result/47415>\
**Category:** Support\
**Created:** [June 21, 2026, 11:18pm UTC](https://discourse.slicer.org/t/how-to-fix-the-cracking-the-window-when-i-changed-the-opacity-from-the-segmentation-result/47415 "2026-06-21T23:18:44Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![wnsdn0497](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/wnsdn0497/32/82517_2.png) [@wnsdn0497](https://discourse.slicer.org/u/wnsdn0497)\
**Post date:** [June 21, 2026, 11:18pm UTC](https://discourse.slicer.org/t/how-to-fix-the-cracking-the-window-when-i-changed-the-opacity-from-the-segmentation-result/47415/1 "2026-06-21T23:18:44Z")

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Hi, I am writing to fix the issue that I am encountering suddenly.

All of sudden, the 3D slicer browser is cracked like below when I turned the opacity from 1.00 to somewhere.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/a/c/acba1118651f0bcb0208f29f1ded3a4868423cfb.png)

Is there anyone who faces the same issue and fixes the issue already?

I have removed and reinstalled the app as well as turned off the depth peeling,

but it did not work.

Thank you for your time.

Best,

Joonwoo

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**Author:** ![Sam\_Horvath](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sam_horvath/32/3092_2.png) [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Post date:** [June 21, 2026, 11:19pm UTC](https://discourse.slicer.org/t/how-to-fix-the-cracking-the-window-when-i-changed-the-opacity-from-the-segmentation-result/47415/2 "2026-06-21T23:19:53Z")

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This is a graphics driver issue, see fix here: [Adding landmarks using Point List results in screen glitches - #3 by jamesobutler](https://discourse.slicer.org/t/adding-landmarks-using-point-list-results-in-screen-glitches/47173/3)

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**Author:** ![wnsdn0497](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/wnsdn0497/32/82517_2.png) [@wnsdn0497](https://discourse.slicer.org/u/wnsdn0497)\
**Post date:** [June 23, 2026, 3:13pm UTC](https://discourse.slicer.org/t/how-to-fix-the-cracking-the-window-when-i-changed-the-opacity-from-the-segmentation-result/47415/3 "2026-06-23T15:13:48Z")

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It works now. Thank you very much for sharing this with me!