Do emissive textures cast light in the NvRTX UE4 RTXDI implementation?

Large numbers of conventional light sources appear to work fine (very impressive!), but I haven’t been able to get emissive textures applied to static meshes to cast light in my project. The RTXDI SDK FAQ indicates mesh lights are supported, but I haven’t been able to find documentation indicating whether the NvRTX UE4 implementation does.