Got it. PSA: IT'S NOT A MOD ISSUE. IT'S THE UPDATE.
The bug is widespread, whether with or without any mods. Many peeps are experiencing the same issue darling Sera and I proclaimed below.
It can happen outta nowhere. Resetting the Perk can help.

Verdict? NOT GUILTY.

But also I may be wrong, since I am stupid.

Got the same issue as Sera. But > Unsubscribed, tried again. Still no materials. Only food.

So the only thing I can get sussy-wussy over is the mod "Loot Info," that might have something do with making the animals look "unskinned," and showing it's own version of loot.

As you said, you only lowered food yields. So this would be weird.

I only lowered the food related yields.

Is it bugged or animal only give meats now? killed a few stag/doe and none of them give antler/hide