Sorry for the confusion. Lens.pm inherits from Cloud.pm, but not the other way around. I used "use Cloud" from the calling program (separate file) to test that Cloud.pm could be found in @INC, which it can. But when I try "use Lens" instead, it finds Lens, but then Lens can't find Cloud.
Does @ISA not use @INC to find modules? That would be weird. Is this a poor system administration issue? As the SysAdmin, I could easily believe it.
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