# What is this diagonal grid on the faces of my active group?

**URL:** <https://forums.sketchup.com/t/what-is-this-diagonal-grid-on-the-faces-of-my-active-group/110206>\
**Category:** Pro\
**Created:** [December 3, 2019, 1:27pm UTC](https://forums.sketchup.com/t/what-is-this-diagonal-grid-on-the-faces-of-my-active-group/110206 "2019-12-03T13:27:07Z")\
**Posts on this page:** 1\
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**Author:** ![sirtet](https://avatars.discourse-cdn.com/v4/letter/s/bc8723/32.png) [@sirtet](https://forums.sketchup.com/u/sirtet)\
**Post date:** [December 3, 2019, 1:57pm UTC](https://forums.sketchup.com/t/what-is-this-diagonal-grid-on-the-faces-of-my-active-group/110206/3 "2019-12-03T13:57:40Z")

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Thanks Dave.  
SU Pro 2017, i updated my profile.  
No, it’s not hidden geo.  
The file is big, i think i have to upload it somewhere else.  
What i did realize: It is not on all geo, but only on one(some?) group(s). Have to check deeper.  
Also, it does not show on all zoom levels.  
the stuff with the grid is also not showing correct in LO:

> [@Some of my Lines in Model-viewports in LayOut look different than in SU... why?](https://forums.sketchup.com/t/some-of-my-lines-in-model-viewports-in-layout-look-different-than-in-su-why/110208):
>
> Suddenly, some lines are light-gray instead of black: [image] all black in SU: [image] Seems like it’s not a style thing, as only the main building has gray lines, the stuff at the top is showing correct. So i suspect it’s a property of the geometry, material or color that i accidentally added to a group? But i can’t figure out what it is… Any ideas? EDIT: At around the same time i started to notice something in SU, that i now realize is related, but i don’t see how: [https://forums.ske…](https://forums.sketchup.com/t/what-is-this-diagonal-grid-on-the-faces-of-my-active-group/110206/2)

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