If I make, or go through a nether portal back to the overworld, I will be in a totally different area. My friends however, do not have this issue, and I find that strange considering most of my friends play on PS4, like I do. This issue has been with me ever since I got Minecraft PS4 Edition, when it wasn't even Bedrock yet! I don't exactly know if this is an issue or a game mechanic, and when I see other players go through a portal, they come back. But one thing I think is quite strange, is that, it doesn't affect me in Creative, but in Survival.