I'm currently having this same issue on my HTC U11, and I have over 15GB of available storage space. The new copies will also say that they were created 12/31/69, and that they're anywhere between 100-150MB. If I go into the world and exit though, it will then change to say it's only 2-4MB and will have the correct date.
I am also having the issue where as soon as I try to even move in my world, it will exit the world and say that "You are out of data storage space and Minecraft is unable to save your progress. Minecraft will return you to the main menu to clear up storage space." so I'm assuming the storage is just buggy.
I'm currently having this same issue on my HTC U11, and I have over 15GB of available storage space. The new copies will also say that they were created 12/31/69, and that they're anywhere between 100-150MB. If I go into the world and exit though, it will then change to say it's only 2-4MB and will have the correct date.
I am also having the issue where as soon as I try to even move in my world, it will exit the world and say that "You are out of data storage space and Minecraft is unable to save your progress. Minecraft will return you to the main menu to clear up storage space." so I'm assuming the storage is just buggy.