# Unexpected material change when filleting

**URL:** <https://discourse.shapr3d.com/t/unexpected-material-change-when-filleting/30256>\
**Category:** Modeling Questions\
**Created:** [February 9, 2024, 9:52pm UTC](https://discourse.shapr3d.com/t/unexpected-material-change-when-filleting/30256 "2024-02-09T21:52:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![rmeador](https://avatars.discourse-cdn.com/v4/letter/r/ad7895/32.png) [@rmeador](https://discourse.shapr3d.com/u/rmeador)\
**Post date:** [February 9, 2024, 9:52pm UTC](https://discourse.shapr3d.com/t/unexpected-material-change-when-filleting/30256/1 "2024-02-09T21:52:16Z")

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I have a bunch of different bodies in two different materials, and when I added a fillet along the common edges, the materials of some of the newly-filleted edges changed to the default material. I think it should have kept the material the body was before.

 ![Screenshot 2024-02-09 at 4.42.29 PM](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/3/d/3d1314bb10b82cae0fc7543919d53be285284496.jpeg)

I’ve tried to reproduce this on simpler bodies and I haven’t been able to. It’s especially interesting that it wasn’t all of the fillet faces. That middle section on the end actually only has the default material on the upper fillet and not the bottom!

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**Author:** ![Stephen](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/stephen/32/16350_2.png) [@Stephen](https://discourse.shapr3d.com/u/Stephen)\
**Post date:** [February 10, 2024, 11:19pm UTC](https://discourse.shapr3d.com/t/unexpected-material-change-when-filleting/30256/2 "2024-02-10T23:19:54Z")

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Is it possible that you have a duplicate body there, that doesn’t have material applied?

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<div class="post-metadata">

**Author:** ![rmeador](https://avatars.discourse-cdn.com/v4/letter/r/ad7895/32.png) [@rmeador](https://discourse.shapr3d.com/u/rmeador)\
**Post date:** [February 14, 2024, 3:00am UTC](https://discourse.shapr3d.com/t/unexpected-material-change-when-filleting/30256/3 "2024-02-14T03:00:43Z")

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I don’t think so. I clicked through each body in the Items sidebar and didn’t see any duplicates highlight in the main view. I have slightly updated the model since I experienced the issue, so it’s possible there was a duplicate at the time and is no longer, but I don’t think so. I think it was a bug relating to so many bodies with different materials all being filleted at once.