Two Hex users one target

[LLOYDENESS]

if there are two hex users in a party can the same hex such as misfortune, be used by each hex user on the same target?

The hex says
"Once a creature has benefited from the fortune hex, it cannot benefit from it again for 24 hours."

does this mean only by the caster? or this specific hex for the day?

[Gallant Armor]

The limitation only applies to the caster, it would not prevent other casters from using that hex on the target.