And now it gets stranger… for whatever reason (seriously, I have no idea) reflection capture spheres suddenly work and no longer crash the editor - HOWEVER - I can no longer set texture scale, angle, position, alignment, or lightmap resolution on any BSP surface. Since it’s not crashing I don’t know if there is a log or output file I can send you to prove I’m not crazy, and I’m willing to upload my entire project somewhere to do so, just tell me where.