I have a nether portal from the roof of the nether linking to the overworld. There is also another portal (more than 8 blocks apart) close to this portal which takes me to a nether fortress.
The problem I am having is that whenever I enter the portal that is supposed to take me back to the roof of the nether, it instead teleports me back to the nether fortress.
I have paired both portals to their exact coordinates, and made sure that they are even facing the same direction.
Is there a reason that this is happening?