# Q3DC does not work properly

**URL:** <https://discourse.slicer.org/t/q3dc-does-not-work-properly/10160>\
**Category:** SlicerCMF\
**Created:** [February 7, 2020, 4:31pm UTC](https://discourse.slicer.org/t/q3dc-does-not-work-properly/10160 "2020-02-07T16:31:44Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![ntokavan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ntokavan/32/4298_2.png) [@ntokavan](https://discourse.slicer.org/u/ntokavan)\
**Post date:** [February 7, 2020, 4:31pm UTC](https://discourse.slicer.org/t/q3dc-does-not-work-properly/10160/1 "2020-02-07T16:31:44Z")

</div>

Problem report for Slicer 4.10.2 macosx-amd64: [please describe expected and actual behavior]  
The fudicial I put on the sample is not fixed. I keeps moving even though I don’t choose any fudicial in “selected landmarks” Also, the landmark is not on surface even though I check “on surface” box.  
I’ve already tried uninstalled Slicer and Q3DC, but the problem stayed the same.