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...

1 Answer 1


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


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