Description:
I was exiting one of the dungeons on one of the unnamed islands. I usually name the island after the dungeon name on the island. I couldn't see the name of the dungeon because the name Island dialog came up. I canceled out of it thinking that I could still name it afterwords. I tried entering the dungeon again and exiting but was never prompted to name the island. I have visited every island and completed the dungeon and have no unlocked the naming Island achievement I believe because of this. I now have no way of ever getting that on my current save game because I saved after words.