# Matchbox shader bug fixes

**URL:** <https://forum.logik.tv/t/matchbox-shader-bug-fixes/6743>\
**Category:** Matchbox\
**Tags:** matchbox\
**Created:** [September 12, 2022, 10:46pm UTC](https://forum.logik.tv/t/matchbox-shader-bug-fixes/6743 "2022-09-12T22:46:56Z")\
**Posts on this page:** 5\
**Page:** 2

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**Author:** ![john-geehreng](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/john-geehreng/32/7195_2.png) [@john-geehreng](https://forum.logik.tv/u/john-geehreng)\
**Post date:** [February 7, 2023, 5:48pm UTC](https://forum.logik.tv/t/matchbox-shader-bug-fixes/6743/22 "2023-02-07T17:48:51Z")

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> [@lewis](#):
>
> Ls\_Nail was also super confusing about how to use track channels/manual offsets

Thanks for all of the updates! Ls\_Nail is one of my favorites, but with newer versions Flame, it doesn’t work like your tutorial. I can get it to work if I use some expressions and turn down the “Extra push” amount, but I’m just eye balling it. Do you have a recommended way of working with this node now?  
Thanks again!

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**Author:** ![john-geehreng](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/john-geehreng/32/7195_2.png) [@john-geehreng](https://forum.logik.tv/u/john-geehreng)\
**Post date:** [February 9, 2023, 2:53pm UTC](https://forum.logik.tv/t/matchbox-shader-bug-fixes/6743/23 "2023-02-09T14:53:10Z")

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I realized it works just like Wireless, so I already have the expressions to link trackers between action and this shader. Adding this to the Logik Portal now.

[Ls\_Nail\_Tracking.zip](https://forum.logik.tv/uploads/short-url/cahwo5tDjiICNrm5Y6wexFqKn5k.zip) (76.7 KB)

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**Author:** ![lewis](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/lewis/32/220_2.png) [@lewis](https://forum.logik.tv/u/lewis)\
**Post date:** [February 11, 2023, 7:24pm UTC](https://forum.logik.tv/t/matchbox-shader-bug-fixes/6743/24 "2023-02-11T19:24:43Z")

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Glad you worked it out - I’m not near a Flame right now but I thought it was working in 2023 last I checked 🤔 I actually didn’t realise anyone used Nail, I found it super useful about twice then barely used it myself for years!

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**Author:** ![GPM](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/gpm/32/4224_2.png) [@GPM](https://forum.logik.tv/u/GPM)\
**Post date:** [February 11, 2023, 9:26pm UTC](https://forum.logik.tv/t/matchbox-shader-bug-fixes/6743/25 "2023-02-11T21:26:29Z")

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Hey @lewis. Curious what the use purpose for Nail is?

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**Author:** ![BrittCiampa](https://avatars.discourse-cdn.com/v4/letter/b/ec9cab/32.png) [@BrittCiampa](https://forum.logik.tv/u/BrittCiampa)\
**Post date:** [February 11, 2023, 10:37pm UTC](https://forum.logik.tv/t/matchbox-shader-bug-fixes/6743/26 "2023-02-11T22:37:36Z")

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Check it out, never had the chance to use it but definitely seems useful for cg track quick fixes! All hail @lewis ! [Nail demo - YouTube](https://m.youtube.com/watch?v=GOQAAb9NqAM)

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