You may have just gotten fatter. I don’t know how you’re measuring that you’ve gotten leaner, but if you’re just going off the fact you’ve now got veins on your arms and calves (where you didn’t before) that may simply be a result of weightlifting.
I’ve got nothing to back this up but my personal experience, but I found my vascularity gains to be fairly immediate and substantial when I started lifting, despite the fact I was waaaay fatter than conventional wisdom would suggest the leanness required to see veins is.
If I were you, I’d get bodyfat callipers. They’re not very accurate for giving you a BF%, but they do let you know cheaply and quickly if you’re getting fatter or leaner than you were last week. If you are genuinely getting smaller readings on your fat pinches, but a larger waist circumference then, yes, I’d say Punisher is correct.