So. We can't create a vanilla Nether Portal. Needs to be the MyM one. I created one, and with voxel minimap, i crashed. crash report Now today i tested without minimap, and success, i was teleported to Nether. Just for testing, i asked a player to test that. He had Journey Map, and when he went to the portal, he get back to my island but on a Nether Biome: (their screenshot) (my screenshot) We was on my island, same time. but he was on "nether" and i was on skyworld. i asked to him to leave, to get his last location coords, and was saying skyworld.
Yeah, it was like I went to the portal but it didn't teleport me to the nether, it teleported me to the same place and visually changed biome to hell for me so I was on Mouro's island all the time but the portal changed biome there only visually for me so the sky was like in the nether on my screen and I had to relog to fix it In other words: I went to the portal, it didn't work and it visually changed biome on my screen to Hell