I feel like I’ve just been the recipient of a giant eggplant in the eye socket.
Here’s what I got back in the mail for the three guild banks that I actually use:
Main Horde guild, which held at least a partial stack of -every single crafting mat type- for Warlords through Dragonflight:
434x Unbroken Claws
1x Ghost Iron Lockbox
598x Maybe Meat
10x Progenitor Essentia
875x Wildfowl Egg
This GB had seven tabs; before the failure, I had 6.75 tabs full and when the disappearances had stopped (at least for me) I had less than 100 slots occupied.
Main Alliance guild, with at least one partial stack of crafting mats from Vanilla through Pandaria:
1019x Netherweave Cloth
8x Small Barnacled Clams
921x Spirit Dust
385x Frostweave Cloth
This GB also has 7 tabs, with around 6.25 tabs of stuff before the failure, and perhaps 125-150 slots left occupied after.
Secondary Horde guild: used as a dumping ground for disenchanting and things to auction. Greens/blues/purples, pet cages, schematics/recipes, some random things, etc. I didn’t notice any pet cages missing, maybe ten recipes/schematics were gone, and for the most part it was mostly random things that I hadn’t found a home for. I estimate I lost perhaps a tab total worth of items. One Elixir of Giants recipe was returned, along with two Dark Iron Rifle schematics, one Imbued Silkweave Bag, and one Bulging Barrel of Oil.
I didn’t have anything I cared enough about to track in two of my remaining four guild banks. The last two were empty to begin with.