I Open a new superflat world, and 1-2 minutes playing the world, bats spawn like crazy, sometimes not too bad. This annoys me alot.His probably affects older versions that I did not add to the affected versions list. Those versions are the ones I know have this.
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.