also having the same issue. Once Portals were linked to the nether roof new portals in the lower nether will not generate, but instead link to existing portals. I have portals in the overworld at 4262, 73, 5005 and 4275, 67, 5148 and they both link to a portal in the nether at 532, 129, 626. Although portals made in the lower nether will generate a new portal in the overworld like they're supposed to
Danielle Laughner
also having the same issue. Once Portals were linked to the nether roof new portals in the lower nether will not generate, but instead link to existing portals. I have portals in the overworld at 4262, 73, 5005 and 4275, 67, 5148 and they both link to a portal in the nether at 532, 129, 626. Although portals made in the lower nether will generate a new portal in the overworld like they're supposed to