You’ll need to update your Ultra Dynamic Sky to the latest version.
I don’t know in which version was this option implemented so id recommend update it to the latest it will most probably be still supported in UE5.2
If it is the latest version you are using than I don’t really know what might be the problem. Because many things about raytracing changed after UE5.4, so also in UDS that changes would have been implemented i guess, and so because of that even if you are using the latest UDS it might not support this in UE5.2.
Also try to change your translucency to ray tracing and raster whatever it is set to, but i think this problem occurs with ray tracing translucency.
Also check if your use HWRT setting is turned ON in the Project settings.