<p>I think this can happen when you switch on Collapse Transformations (the sun icon <a href="https://i.sstatic.net/tS3Yy.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/tS3Yy.png" alt="enter image description here" /></a> ) on your pre-comp.  This changes the order in which After Effects renders things - there's a good example of this here:</p>
<p><a href="https://pixelsandpaths.com/posts/tutorials/using-collapse-transformations-and-continuously-rasterize-in-after-effects-by-school-of-motion/" rel="nofollow noreferrer">https://pixelsandpaths.com/posts/tutorials/using-collapse-transformations-and-continuously-rasterize-in-after-effects-by-school-of-motion/</a></p>

CC BY-SA 4.0
2022-07-21T10:44:41.223Z
2022-07-21T10:44:41.223Z
tomh
<p>I'm trying to use the blending mode. When I start the project, there is no problem with the blending mode. But after a few days, the blending mode of some of my precomps always changes to &quot;-&quot;. After that the effects are deleted and I can't change the state.</p>
<p>Does anyone know how to solve this problem?</p>
<p><a href="https://i.sstatic.net/unIor.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/unIor.png" alt="here is an example of how it looks like..." /></a></p>

<after-effects>
After effects: Blending Mode problem
Donna
# After effects: Blending Mode problem

(Asked by: username_0 on 2022-07-20)

I'm trying to use the blending mode. When I start the project, there is no problem with the blending mode. But after a few days, the blending mode of some of my precomps always changes to "-". After that the effects are deleted and I can't change the state.

Does anyone know how to solve this problem?

[![here is an example of how it looks like...](https://i.sstatic.net/unIor.png)](https://i.sstatic.net/unIor.png)

**Tags:** after-effects


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## 1 answers

### Answer by username_1 on 2022-07-21. Score: 1

I think this can happen when you switch on Collapse Transformations (the sun icon [![enter image description here](https://i.sstatic.net/tS3Yy.png)](https://i.sstatic.net/tS3Yy.png) ) on your pre-comp. This changes the order in which After Effects renders things - there's a good example of this here:

<https://pixelsandpaths.com/posts/tutorials/using-collapse-transformations-and-continuously-rasterize-in-after-effects-by-school-of-motion/>


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