Materials not loading!!! (Paragon assets)

Hi,
I downloaded the minions from paragon from the ue4 marketplace. I added the files to the project from the epic games launcher. It worked everything fine, but today when I opened my project the materials are not loading! Just the M_Red_Buff_LavaDrip it works fine. I didn’t change anything, I check the texture there are all in the materials correctly and it doesn’t give me errors. I deleted all the file of the PragonMinions, even from the VaultCache and reinstalled everything. It still doesn’t work. I tried to add the ParagonMinions in another project and everythings works fine (same versione 4.20).
I just can create a new project and work from there because I actually didn’t nothing in this project. But I really don’t wanna just creating a new project, because what if it happens again in the future when I’ll have done a lot of stuff in that project. I would like to fix this problem but I actually don’t see the reason why the materials shouldn’t work.

Did you find a workaround? I have the same problem; Compiler doesn’t even give an error code

Nope, I just made a new project and it works fine. But it’s kinda annoying if happens again.

I figured out that most of the problems with the shaders were coming from the MaterialFunction MF_CharacterEffects.
It is one of the last node in most materials. You can just bypass them if you don’t need some of the effects (I think there are some Rimlight effects and despawn stylization done there).

I will inspect further more the issue and what configuration needs to be done in the project to use this material function but for now I don’t need it.

Here is an exemple with the redBuff minion:

I think there might be an option we activated in our projects along time that is incompatible with the requierements of this material function. Since there is no error message it’s quite hard to find where it comes from.

Nice to know thank you. It’s strange the fact that by deleting and reinstalling all the assets doesn’t fix it and by creating a whole new project it does.

The only setting I might have touched I think it was the “Generate Mesh Distance Fields” under Engine/Rendering/Lightning