Added/Fixed - The standard Java Object equality checks were inconsistent and resulted in unusable games only for some 1.8.x servers. This was caused by a few variations in serialization and deserialization of ItemStacks between Minecraft versions and Skull rendering. This has been fixed by a custom comparison method and all clickable items and functions should work properly for all versions. (Please contact me asap if you are still having any issues regarding this)
Improved - As a part of the newly added comparison method the click Events class has been cleaned up and improved for better performance as well as the class in charge of handling all of the individual game controls and click behavior.
Fix - The game MatchIt did not check which inventory was clicked which resulted in players being able to click on empty slots in their own inventory and flip items in the game inventory. This did not give an advantage or any sort of issues other than undesired behavior.