Magazine Case non-existent?

Put simply, the Magazine Case does not exist as an inventory item in my game. It shows up in the item browser, as quest rewards, and as craftable in my hideout, but does not appear in the Flea Market (not even on the leftmost items bar, only 15 records in Cases when the item browser has 16) and doesn't show up in my stash when I click "get items" in the hideout. I don't believe any of my mods alter these items (I do not have Case Space Manager enabled in ServerValueModifier), and the magazine case does appear in the Live EFT install where I copied my files from. If anyone knows what's gone wrong, please help

Yes but also no- The folder is there in both installs, but I mean in-game in my Stash full of mags. I own multiple in my Live install. In AKI-SPT, I cannot get the case to appear in my Stash even after crafting it in my hideout, and while the Magazine Case shows in the Handbook down in the bottom right, it does not show in the item list in the Flea Market.

I've discovered the issue! Kiki's Fence Tweaks (which is described as only removing items from the Fence) has a setting that removes items from the Flea Market as well. Something about this setting doesn't just remove the item from the market but somehow has the effect of removing the item wherever it finds it, which was catching the Mag Case as it came out of my hideout and deleting it from existence.