# Pull distance issues in a modified version of expanded ensemble

**URL:** <https://gromacs.bioexcel.eu/t/pull-distance-issues-in-a-modified-version-of-expanded-ensemble/564>\
**Category:** User discussions\
**Created:** [July 23, 2020, 11:22pm UTC](https://gromacs.bioexcel.eu/t/pull-distance-issues-in-a-modified-version-of-expanded-ensemble/564 "2020-07-23T23:22:50Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![genie](https://avatars.discourse-cdn.com/v4/letter/g/dfb087/32.png) [@genie](https://gromacs.bioexcel.eu/u/genie)\
**Post date:** [August 16, 2020, 3:08pm UTC](https://gromacs.bioexcel.eu/t/pull-distance-issues-in-a-modified-version-of-expanded-ensemble/564/3 "2020-08-16T15:08:22Z")

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I have a feeling that there is some bug in handling of the pull distances.  
I have written about it here [Problem with "Distance between pull groups" and PBC](https://gromacs.bioexcel.eu/t/problem-with-distance-between-pull-groups-and-pbc/547/4) and submitted an issue here [https://gitlab.com/gromacs/gromacs/-/issues/3613](https://gitlab.com/gromacs/gromacs/-/issues/3613) but apparently the developers were not able to look into it yet.

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