Greetings, Jeprokz!
Thank you for posting your concerns about trading your trial weapon to an NPC. In order to make sure that we have sufficient information for a thorough investigation, it would be a great help to us if you could provide the specific name of both the NPC and the trial weapon that are involved with this matter. Also, providing the following information will improve our ability to try to replicate what you have been experiencing, and possibly finding a solution:

Platform:
ISP:
Type of Internet Connection:
Internet Connection Speed:
Date & Time:
Frequency:
Character Name:
Race:
World:
Main Job:
Support Job:
Area and Coordinates:
Party or Solo:
Steps:
1.
2.
3.
<*Add more steps if necessary.>

Thanks again for your participation!