Fixed slayer cape perk activation

Server/src/main/core/api/ContentAPI.kt

@@ -4,6 +4,7 @@ import com.moandjiezana.toml.Toml
 import content.data.consumables.*
 import content.data.skill.SkillingTool
 import content.global.handlers.iface.ge.StockMarket
+import content.global.skill.slayer.SlayerEquipmentFlags
 import content.global.skill.slayer.SlayerManager
 import content.global.skill.slayer.Tasks
 import content.global.skill.summoning.familiar.BurdenBeast
@@ -2169,6 +2170,9 @@ fun dumpContainer(player: Player, container: core.game.container.Container): Int
                         sendMessage(player, "A magical force prevents you from removing your ${item.name}.")
                         return@forEach
                     }
+                    if (SlayerEquipmentFlags.isSlayerEq(item.id)) {
+                        SlayerEquipmentFlags.updateFlags(player)
+                    }
                 }
 
                 container.remove(item)