Why is it that when trying to sell items to NPCs, i.e. jewels, after a while of selling the npc will stop being interested in what you have. Do they have a certain gold count to prevent overselling? It just becomes a bit tedious that you have to move to a different town to offload your jewels.. can it be fixed so that you don't have to do this?
Yes its cause you(or someone else) sold them all they have gold for. Come back one hour. Nothing to fix, working as designed to prevent economy abuse
you also need to "vendor buy" the vendor to restart the timer for selling as far as I understand. otherwise, they will never want to buy more.