I have a nether portal in my house , coordinates 800, 200 that links up to the nether at 105, 39
It goes to 105 39 fine, but when i come back, it links back to 900 342 !!
I tried several times, always the same.
Also, there are 3 ghasts outside my nether bunker, not ok in normal mode!
My seed is : 179081109