# Issues during runtime with Mesh flickering

**URL:** <https://forums.unrealengine.com/t/issues-during-runtime-with-mesh-flickering/479196>\
**Category:** Rendering\
**Tags:** movable, unreal-engine, flickering, runtime, question\
**Created:** [February 22, 2021, 9:20am UTC](https://forums.unrealengine.com/t/issues-during-runtime-with-mesh-flickering/479196 "2021-02-22T09:20:37Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![xylakis](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@xylakis](https://forums.unrealengine.com/u/xylakis)\
**Post date:** [February 22, 2021, 9:20am UTC](https://forums.unrealengine.com/t/issues-during-runtime-with-mesh-flickering/479196/1 "2021-02-22T09:20:37Z")

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Hi.

I ve been having this issue of mesh flicker when on runtime and I have no clue what caused it or how to fix this: I am demonstrating here the issue Im facing : [https://www.youtube.com/watch?v=xRfS3TZkvzI&feature=youtu.be](https://www.youtube.com/watch?v=xRfS3TZkvzI&feature=youtu.be)

In the video you ll notice that the pillar produces a sort of a flicker/artifact while the surrounding environment is functioning properly.

An explanation. All the environment is being created from within a BP and within its construction script so everything is movable. I don’t know if that has anything to do with that?

Thank you in advance for any ideas or tips on how I could fix that.

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**Author:** ![ClockworkOcean](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/clockworkocean/32/1169999_2.png) [@ClockworkOcean](https://forums.unrealengine.com/u/ClockworkOcean)\
**Post date:** [February 22, 2021, 10:02am UTC](https://forums.unrealengine.com/t/issues-during-runtime-with-mesh-flickering/479196/2 "2021-02-22T10:02:56Z")

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It looks like Z fighting. Do you definitely only have one mesh there? Is it possible 2 are overlapping?

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**Author:** ![xylakis](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@xylakis](https://forums.unrealengine.com/u/xylakis)\
**Post date:** [February 23, 2021, 2:50pm UTC](https://forums.unrealengine.com/t/issues-during-runtime-with-mesh-flickering/479196/3 "2021-02-23T14:50:06Z")

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Hi Clockwork.

Thank you for your reply. I doublechecked, that shouldn’t be the issue 😕

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**Author:** ![ClockworkOcean](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/clockworkocean/32/1169999_2.png) [@ClockworkOcean](https://forums.unrealengine.com/u/ClockworkOcean)\
**Post date:** [February 23, 2021, 2:54pm UTC](https://forums.unrealengine.com/t/issues-during-runtime-with-mesh-flickering/479196/4 "2021-02-23T14:54:10Z")

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Darn… not sure.