Bukkit

What steps will reproduce the problem?
1.Enter survival games with a health boost potion effect
2.leave survival games
3.have doubled health boost

What is the expected output? What do you see instead?
how have it doubled

What version of the product are you using?
Beta dev1.9.4b

Are you using a Spigot 1.8 patch build?
yes - i think

Do you have an error log of what happened?
no

What other plugin(s) do you have on the server?
Buycraft, Lockette, SuperTrails, MaxBans, VoxelSniper, TimeLock, AsyncWorldEditInjector, CoreProtect, PlayerHeads, WorldEdit, MCDocs, TimTheEnchanter, Essentials, VipSlot, ClearLag, BukkitCompat, AutoMessage, Chairs, Votifier, ProtocolLib, Multiverse-Core, MythicDrops, PayDay, AsyncWorldEdit, EssentialsChat, SimpleHelpTickets, PermissionsEx, DragonRename, RandomBox, GAListener, ServerListPlus, Vault, BottledExp, MobArena, PwnFilter, WorldGuard, Punishmental, ItemStay, EssentialsProtect, Multiverse-Inventories, NoPortals, Bounty, EssentialsSpawn, DeathControl, SurvivalGames, Citizens, ChopTree3, uHome, VanishNoPacket, EchoPet, GlobalMarket, GriefPrevention, ChestShop, ArmorStandEditor, dtlTraders

Please provide any additional information below.
i dont know how its happening but my players are using it to abuse the system by doubling thier potions everytime they join and leave survival games some people had 50 hearts

I have this problem too

i have problem on player that have Armor Attribute (Health)

everytimes player played

his/her health will double permanently