Hello, Since updating to 4.18, I have discovered that Video / Media files don’t seem to be working with the Light Function material any more. I am trying to project a video file using a spot light actor, onto people standing in a pool of water. I understand spot lights cant project colour and that…

Thanks for the report, zuthyrus! This has been fixed for 4.19 with CL 3902206. In 4.19 you will be able to sample media textures outside pixel shaders (i.e. lighting functions) with SM4 and up.