Thank you, sir. Successfully went through the GlowLOD generation, expectably seeing "3DName lookup could not open" messages in the process. I wonder if they are useful, however, considering there's no 'filename' info. Log file
For some reason, I get the exact same error message every time I generate new LODs, but turning off all of the new Glow LOD options does the job. For the time being, make sure you don't check any of those.