Can you tell me what item it was? Was it an epic item? Or was it enchanted?
Maybe you excluded it from selling in the settings?
best regards
big bad wolf
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So it is basic item not epic.
After each normal quest every basic item is being checked for cauldron. For example today witch (owner of cauldron) accepts gloves. So if you got gloves you will get 2x price
Check the code for quests. Log message for this is like