Updating this post: I'm a dumbass.
The light Munich I thought I bought from LP was, in fact, one of the GoldSwaen Cara malts. In other words, a crystal malt in the 30-40 Lovibond range, not an actual Munich malt. Crap.
The good news? I finally caught onto this yesterday, between looking at my original order and researching the Swaen website. Note to self: be more diligent in the future when researching new brewing ingredients.
The bad news? Not really bad, per se, but earlier today I sprung for a couple of 10# bags of Avangard light Munich (which I know for sure are base malts, not cara/crystal malts) from LP. But, I've got several years worth (~45#) of medium crystal malt on my hands (sitting in a Vittles Vault) to work thru.
First world problems, no doubt. I think once I work thru the Swaen in my inventory, I'm going back to Avangard for my base malts.