I was going to make some fireworks in my creative world, so i put down a crafting bench and right clicked it, but nothing happened. Similar things have happened in other worlds too, so I experimented. After breaking a block with a flower on top, the block disappeared, but the flower didn't. Redstone also acted funny (see pictures). After a few minutes the blocks updated and the flowers and redstone fixed itself. Then, the dropped items did not go into my inventory when I stood on top of them. I did a quick search on the site but didn't find anything similar.
Please attach the complete output of the "Launcher Log" which can be found on the second tab of the launcher.
Please attach the complete output of the "Game Output (Your Minecraft name) " which can be found on the fourth tab of the launcher.
If the launcher closes after game start, please edit your profile and select "Launcher visibility" then, "Keep the launcher open".
Please force a crash by pressing F3 + C for 10 seconds while in-game and attach the crash report (
[minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]
) here.