Talk:Carbon Fiber/@comment-43963771-20200513012857/@comment-31225999-20200513050036

You should not be able to get Carbon Fiber by running the Ingall's Mine levels yourself, you have to run the Deepest Ruin to get it. Carbon Fiber is still listed as one of rewards for some of Civil Corps' ruin diving commissions, so you should be able to get it by paying them.

Did the player you are talking about made sure to check her inventory after accepting the items from the mail sent by Civil Corps? The Carbon Fiber is not listed on the commission board or in the mail received after the commission is completed, but it does appear in the inventory immediately after taking the contents of this letter. I have tested it multiple times and have always gotten all items listed, and nothing seems to have changed about how the Civil Corps commissions work in the recent update.