Compiling shader over billion O_O

Development Rendering
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1

When we moved from 4.18 to 4.19 our project, we got some strange problem:
If we change parameter in material Engine start compile shaders, and that happen even if we change parameter on 1.
Other problem we see - engine start compile shaders, and in viewport message show that need to compile 4000000000 shaders (max from int-type).
I think its happen, becouse counter of compiling shaders get down over 0 =)

But problem is not of that counter. Problem is that Engine over and over again compile shader even if I move some node.

I tried delete Intermediate, Saved, Binaries.
I tried delete Data cache.

But problem dont want to go out =(

2

try deleting the ProjectFolder/DerivedDataCache/Boot.ddc file and run project again. It should complile properly.

3

We created new project, and migrated content. In New project same problem.

4

Can be possibly a problem with a specific material you have. You can check by importing materials one by one if you have the time.

5

For resolve that problem with compile shader always just turn off Live Preview.

Problem with 4kkk shaders - its not my area of responsibility =)

6

Can someone explain where the Live Preview can be found :stuck_out_tongue: