I had a survival multiplayer world and when I leave my world without saving it, and when I come back, my inventory is reset. This problem makes me redo all the collecting items or resources.

This are the steps to see if it happens:

Step 1: Create a survival world and make progress on that world.

Step 2: Close the game instantly and also close the game on the recent list of the apps that were opened recently.

Step 3: Open the game and open that world you are testing.

Result: Resets the player's inventory