/vr/ - Retro Games

ZScript folks, what am I doing wrong? Here's a simple code running from EventHandler's WorldLoaded:

int lump = -1;
while (-1 != (lump = Wads.FindLump('NUKAGE3', lump + 1)))
Console.Printf("%d\n", lump);

It should print some number at least once, since it's a flat from Doom 2 IWAD, but it doesn't. Works for other lump names I tried though, like 'DEHACKED' or 'zscript'.