Flickering issue on translucent material

I created a public phone booth scene using Ultra Dynamic Sky.
However, we discovered that the glass material of the booth was causing unexpected flicker.
The probable cause is a problem caused by shadows on trees made of foliage.
Flicker does not occur by removing the shadow trees in the booth.
Tried several shadow related options, but couldn’t solve it.
Please let me know what could be the cause of the problem I hadn’t thought of.


Maybe you can try turning off the DOF of the transluscent material, it Renders the glass in a different layer, maybe if everything on the scene is rendered in the same layer it would solve the problem

Hope this helps!