RenderTranslucency cause hitches in UE5.6 ....How to quickly find the problem?

I have some brutal hitches in UE5.6 caused by Render Translucency.

I didn’t have these hitches in previous versions of the engine (I’ve only been using UE5.6 for three days). So I guess something changed in the processing of translucent materials in this version.

The thing is, I’ve been searching and replacing the translucent materials for the last two days. And I still haven’t found what’s causing the problem.

I know it must be a particle system because it’s the only place where l have translucent materials.
I have tested each of the particle systems separately and isolated from all the others with a trace, but this way they do not present any problems. I think the problem is when several particle systems are reproduced simultaneously.

I’m thinking about removing all translucent materials. But I honestly think that would kill what makes particle systems beautiful.

Everything would be easier if I could know exactly what is causing the problem.

But Unreal Insights just says “RenderTranslucency”
Any way to quickly find the problem?
(A “VERBOSE” mode for Unreal Insights would be great).

Thank you so much!!


Additional info:



The world will never be the same without translucent materials.

Now the problem is the garbage collector.
Periodically hits FPS.

Any way to smooth out the garbage collector?