[2021] Still no trader

https://steamcommunity.com/app/251570/discussions/1/2997674644675553021/ Follow the steps here, And see if the issue persists

You need to access the traders shop (See what he has for sale) to complete the quest. If it still doesn't finish, just abandon it, the reward of that quest is to lead you to the trader in the first place. Theres no other reward from it except maybe 100 exp which is negligible.