When sending an Oil ship manually to an island in another region, the Oil ships ends up on the Trade Post, not on the Oil-Harbour.
Hey SirHarryPierce thanks for reaching out and apologies about the delayed response from our team.
I've had a closer look and it does not appear that this has been brought up before, so with that in mind, can I ask you to clarify the following (if possible):
1. Since when did the issue start to happen?
2. Does this occur each and every time you attempt to send Oil ship manually?
3. Is there any possibility you could provide us with save file for reproduction purposes?
Let us know and we will take it from there!