@Mod LateLag
It is normally single player, no one has been on it with me for a while. Interestingly I have an update to this though. Every time I close the app on console and reopen the app, and choose this specific world, the first time it loads, it loads into that file from years ago (with the exception that besides inv, armor and ender chest, the world is how it is supposed to be the last time I played it). I can then exit that world, reopen the world and it is the correct and current version. Where it gets more interesting is every time I reopen the world for the first time, I start where it ended the last "first" time. For example, I exited the world in a body of water (incorrect inventory), loaded up world again and was fine (correct inventory). I exited the app, reopened the app and started world again in the body of water (incorrect inventory). It is saving my last location with the bug (incorrect inv) while also saving the progress of correct inventory.
Also for context: the world is exactly how it was when I last saved it. Items in normal chests were correct, recently created buildings, roads and torches were all there. Nothing was missing beyond the things I listed above.
That makes sense, thanks Mod Goldenhelmet and Latelag. Like I said, I just have to close and reopen the world and it returns to normal so everything from my end as of today is good. I appreciate the swift responses.