Vray Light Gen Not Working Link

Alex thought, "No problem. I'll use V-Ray Light Gen. Click a preset. Done."

They Googled furiously: "vray light gen not working" — and found forum threads from 2018, vague mentions of "paths," and a buried comment about "Windows usernames with spaces." vray light gen not working

They restarted 3ds Max. Reset the scene. Tried "Morning." Same thing. The dome light stayed stubbornly black. Alex thought, "No problem