Check the allowed class before treating it as a bug
Some Lootbound equipment has class restrictions. If a legendary or divine item works on an ally but not your hero, compare its allowed class with both characters. Rarity does not make an item universally equippable.
Separate wearer and space checks
- Read the item's class restriction in its tooltip.
- Select a party member that meets that restriction.
- Open that character's equipment grid and rotate the item into free space.
- Confirm its stats are applied before deciding which old item to remove permanently.
Do not dismantle a board for an invalid item
More empty cells cannot overcome a class restriction. Conversely, an eligible item still needs a valid footprint. Check those two causes separately so you do not throw away working equipment while diagnosing the wrong problem.