Quark-r1.4-118.jar
AutoRegLib-1.3-15.jar

When i set key 'R' or 'S' for 'Sort Player' and search in cretive for 'spruce', 'creeper', many items just disappear from table, leaving empty cells. It seems that cause after entering letter assigned for 'sort'.
Creative tab heals only from reloading world, but the same thing repeats again.
If reset key assignment - all repaired.