Hey,
Parallel rendering seems to be broken for Amd gpus on Vulkan, when you change to Unlit and look at a translucent material like glass or at some niagara particles you get weird artifacts and sometimes it can crash.
Tested on:
rx 9060 xt, 9070 xt and rtx 5080.
Windows 11
Also tested on new projects. Everything used to work perfectly on UE 5.5.4.
Fixed most issues with r.ParallelTranslucency=0, r.ParallelVelocity=0 and r.ParallelShadows=0