same for Windows 10
Brief clip showing it for the 1.16.0.53 Beta on Windows 10 as well as a workaround (simply remove it and re-add it to the wall).
The overworld portal I created in the cave is/was my original. The nether world portal was generated by this portal. In a newly generated world (this seed), if I go right back into the nether world portal I come out in the cave. If I walk around the nether and enter the nether portal, it brings me out at the new portal.
Based on your comment, I think the bug might be that the game-generated portal in the nether is made too far from the overworld portal I made. So when I try to go back to the overworld the way I came, it does the math you talk about and determines it should make a new portal in the overworld.
Check out the comment from the mod at MCPE-64662 ... also, this issue is being tracked at MCPE-63188. 🙂
Another video demonstrating issue on Win 10 when opening 1.15 world that's been converted to beta 1.16.0.51:Â https://1drv.ms/v/s!Apr73Jy6zWsqsjliE7wBVyjLfh7V?e=E19P5t
I too am getting this issue in the non-beta of the game (v1.16.220). My seed is - 1132233734. The first village I found (590, 66, 50) had more than a dozen villagers. Subsequent villages only had 2 to 3 villagers. After going into the Nether from a reconstructed Nether Ruin (45, 71, 371) and coming out in a new 4/4 map section of the world (I was pursuing an Ocean Monument thanks to the Ocean Explorer Map I bought from a cartographer I created at 590, 66, 50), no villages I've discovered in this new area have had villagers. I don't know if the Nether is causal or coincidental. Like someone previously commented, the two zombie villages ( -2550, 66, 550 & -2900, 64, 1060) I found was populated with zombie villagers. Examples of empty villages:
-1150, 69, -1450
-2400, 64, 960
600, 65, -750 (I think this one was abandoned before I accessed the Nether)