While attempting to replicate a redstone structure from an online tutorial, I found that everytime I click on another window and click back onto minecraft, the mc window moves from the position I had it to (windows split screen right or left side, or as I later learned any position other than full screen or very close to default and anything touching any side of the screen other than full screen) back to default. I initially waved it to one side and continued my build but soon learned that it made my redstone tutorial impossible to copy and wasted a good fifteen minutes of time moving the window back into position where I could see what I was copying and my mc window. To me, horses aren't the most fun thing in the world and were the only substantial update. This bug alone makes the entire new update completely NOT WORTH IT! PLEASE FIX IMMEDIATELY!!!!