WTH i lost all my advancements AGAIN! and this time i had even harder to get advancements than last time, this is the 3rd time in 2 years i have lost all my advancements/achievements, after updating to 17w43b i saved a backup of my world and when i went into my world i noticed all my advancements had dissapeared (again) so i went back to 1.12.2 and loaded the backup. AND GUESS WHAT? i lost all my advancements (AGAIN), so i checked my world save and the advancements file was still there but it wasnt showing up in the game. this bug REALLY needs to be fixed PLEASE FIX THIS D: