When generating a portal in the nether, it sometimes generates incorrectly, with missing corners.
This seems to be caused by terrain around it. Note the corners seems to be overrided by the terrain, but the top right corner should have generated.
MC-175660
Incorrect nether portal generation
Resolved
Awaiting Response
1
Please provide the seed of the world as well as the coordinates of where you built the portal in the overworld.