Logged on tonight and immediately received a message from my quick slot add-on that I was out of 3 different items, so they were removed from the preset slots. Checked my quick slots, gone. Checked inventory, sure enough, gone.
I don’t know the exact quantity I had, but I definitely had, at minimum, double-digits of: Solitude Salmon-Millet Soup, Witchmother’s Potent Brew, and Essence of Immovability in my inventory.
Nothing else obvious is missing from this character, but I don’t know how I’d know for certain I didn’t lose more.
Logged onto all of my other character slots, and they were not missing anything that I could see. I use the same potion and food on a few other characters and they were fine.